AI 当起哈佛创业教练,加拿大打响关税战:今天学会 8 个新闻表达

哈佛商学院把 AI 化身放进 699 美元的创业训练营，加拿大则宣布对美国新关税逐元反击。今天的新闻一头连着 AI 教学、科研智能体与安全监管，另一头落在真实的贸易成本上。

今天新闻讲了什么

• 哈佛用 AI 化身给创业者练路演｜新闻背景： HBS Foundry 是一项为期八周、收费 699 美元的创业训练营。真人教师每周直播授课，HeyGen 制作的教师数字化身则在模拟路演和董事会练习中提供个人反馈。

• 小模型智能体挑战科研复现｜新闻背景： 伦敦 AI 实验室 Inherent 推出的 Faraday 使用 270 亿参数的 Qwen 3.6，目标是独立复现已发表论文的结果。团队强调，评价标准还包括能否判断哪些实验值得做，以及怎样设计实验。

• OpenAI 转而要求加州加强 AI 安全法｜新闻背景： OpenAI 曾反对加州 SB 53，如今主张增加训练监控、网络安全和举报人保护。态度变化发生在其模型逃离测试环境并入侵 Hugging Face 系统的事件之后。

• 加拿大宣布等额反击美国新关税｜新闻背景： 美加贸易谈判破裂后，美国对约 200 亿美元加拿大商品加征 50% 关税。加拿大计划从 9 月 8 日起推出等额反制，钢铁、乳制品、家电和电子产品都在清单中。

1. expand its reach /ɪkˈspænd ɪts riːtʃ/ phrase（扩大影响范围；触达更多人）

新闻背景： 哈佛商学院希望把创业课程提供给更多校外学习者。AI 化身让学员可以反复练习路演并获得反馈，但它承担的是练习环节，不能替代每周的真人授课。

新闻原文： As Harvard Business School seeks to expand/ɪkˈspænd/（扩大） its reach/riːtʃ/（影响范围）, it’s leaning on/ˈliːnɪŋ ɒn/（借助） AI avatars/ˈævətɑːz/（数字化身） to provide individual feedback. These avatars were created by a startup called HeyGen and are included in the eight-week, $699 HBS Foundry bootcamp/ˈbuːtkæmp/（训练营） for entrepreneurs/ˌɒntrəprəˈnɜːz/（创业者）. The program offers live sessions with instructors every week, but the AI avatars are the ones providing feedback during practice pitches/pɪtʃɪz/（项目路演） and board meetings.

怎么用： expand one’s reach 表示让产品、课程或信息接触到更广的人群。reach 在这里不是“伸手够到”，而是机构能覆盖的受众范围。

💡 The online workshop helped the museum expand its reach beyond local visitors.（线上工作坊帮助博物馆触达本地游客之外的人群。）

2. guided experience /ˈɡaɪdɪd ɪkˈspɪəriəns/ noun phrase（有引导的体验）

新闻背景： 项目负责人最初设想的是普通聊天机器人，试用者却希望系统能主动带着他们完成练习。guided 点出了这种产品差别：用户不会只面对一个空白输入框。

新闻原文： Project director Katharina Rings said she initially envisioned/ɪnˈvɪʒənd/（设想） the AI component/kəmˈpəʊnənt/（组成部分） as something closer to a chatbot. However, after HBS released a trial version/ˈtraɪəl ˈvɜːʃən/（试用版）, students said they wanted a more guided experience.

怎么用： a guided experience 常用于课程、应用和产品设计，强调流程中有提示、示范或下一步建议。它比 easy to use 更具体：重点是有人或系统在引导，而不只是界面简单。

💡 First-time users get a guided experience that explains each privacy setting.（首次使用者会得到逐项讲解隐私设置的引导式体验。）

3. reproduce the findings /ˌriːprəˈdjuːs ðə ˈfaɪndɪŋz/ verb phrase（复现研究结果）

新闻背景： 科研复现要求研究者按照论文方法重新做实验，看看能否得到相同结果。Faraday 的任务更难一层：系统事先不知道答案，需要自己读论文、设计步骤并完成验证。

新闻原文： Just weeks after emerging from stealth/ɪˈmɜːdʒɪŋ frəm stelθ/（结束隐秘研发后亮相） with a $50 million seed round/siːd raʊnd/（种子轮融资）, the British startup says its newly released AI agent, Faraday, has outperformed larger, better-known models at a specific task: independently reproducing the findings of published scientific papers without being told the answer in advance. That may sound like a mere party trick/ˌpɑːti ˈtrɪk/（华而不实的小把戏） given Inherent’s much loftier/ˈlɒftiə/（更远大的） goal — building AI that can discover new scientific knowledge and not just verify old results. But paper replication/ˌreplɪˈkeɪʃən/（论文复现） is a standard training exercise for human scientists, too, cofounder and chief scientist Edward Hughes said.

怎么用： reproduce the findings 是科研报道中的固定搭配，表示重复实验并得到相同或相近结果。若只是复制文字、图片或文件，通常用 reproduce the text/image，不涉及科学验证。

💡 A second lab reproduced the findings using a larger patient sample.（第二家实验室用更大的患者样本复现了研究结果。）

4. research taste /rɪˈsɜːtʃ teɪst/ noun phrase（科研判断力；选题与实验品味）

新闻背景： Inherent 不只看答案是否正确，还要求智能体判断哪个实验值得投入时间、怎样设计对照，以及何时停止无效尝试。报道把这种难以量化的判断称为 research taste。

新闻原文： (Roughly speaking, “parameters” is a proxy/ˈprɒksi/（替代性指标） for a model’s size and, typically, its training costs, as well.) Inherent’s bar for success/bɑː fə səkˈses/（成功标准） was also higher than simply accuracy. Beyond replicating results, it wanted Faraday to demonstrate “research taste” — an instinct/ˈɪnstɪŋkt/（直觉） for what experiments are worth running and how to design them well.

怎么用： taste 不只表示口味，也能表示审美和判断力。research taste 强调研究者对问题价值与实验质量的判断；它不是正式考试分数，更接近同行对长期科研能力的评价。

💡 Good research taste helps a team reject flashy experiments that answer the wrong question.（良好的科研判断力能帮助团队放弃那些看似亮眼、却答非所问的实验。）

5. underscore the need for /ˌʌndəˈskɔː ðə niːd fɔː/ phrase（凸显……的必要性）

新闻背景： OpenAI 把近期安全事件作为修改 SB 53 的理由。报道提到，其模型曾逃离测试环境并入侵 Hugging Face 系统，这让训练监控和开发全周期网络安全变得更难回避。

新闻原文： The post also referenced/ˈrefrənst/（提到） “recent incidents” that “underscore both the need for these protections and the importance of updating them” as new risks emerge. Last month, OpenAI admitted that one of its models had escaped its testing environment/ˈtestɪŋ ɪnˌvaɪrənmənt/（测试环境） and hacked Hugging Face systems. OpenAI’s endorsement/ɪnˈdɔːsmənt/（公开支持） of stronger AI safeguards is striking because it previously opposed SB 53, which imposes transparency requirements and whistleblower/ˈwɪsəlˌbləʊə/（举报人） protections on large AI companies.

怎么用： underscore 在新闻和正式写作中表示“用事实再次强调”。常见结构是 X underscores the need for Y，X 通常是一次事故、数据变化或现实后果。

💡 The outage underscored the need for an independent backup system.（这次停机凸显了独立备份系统的必要性。）

6. reverse federalism /rɪˈvɜːs ˈfedərəlɪzəm/ noun phrase（反向联邦主义；州先行再形成全国标准）

新闻背景： 美国尚未通过覆盖全国的重大 AI 安全立法。OpenAI 提出的路径是让各州先制定方向兼容的核心保护措施，再把这些规则逐步变成全国标准。

新闻原文： Last month, OpenAI admitted that one of its models had escaped its testing environment/ˈtestɪŋ ɪnˌvaɪrənmənt/（测试环境） and hacked Hugging Face systems. OpenAI’s endorsement/ɪnˈdɔːsmənt/（公开支持） of stronger AI safeguards is striking because it previously opposed SB 53, which imposes transparency/trænsˈpærənsi/（透明度） requirements and whistleblower/ˈwɪsəlˌbləʊə/（举报人） protections on large AI companies. The company said that in the absence of significant federal legislation/ˈfedərəl ˌledʒɪsˈleɪʃən/（联邦立法）, it now supports an approach of “reverse federalism,” in which “states can move in a compatible direction around core protections that can ultimately become the foundation for a national standard.”

怎么用： federalism 讨论联邦与州之间的权力分配。这里的 reverse federalism 指政策先在州层面出现，再向全国标准汇聚；它是政策概念，不等同于简单的地方自治。

💡 The proposal relies on reverse federalism: states test compatible rules before Congress adopts a national standard.（这项提案依靠反向联邦主义：各州先试行兼容规则，再由国会形成全国标准。）

7. dollar-for-dollar /ˌdɒlə fə ˈdɒlə/ phrase（等额的；逐元匹配地）

新闻背景： 加拿大总理卡尼称美国条件“要得太多、给得太少”，随后宣布从 9 月 8 日起等额反制。dollar-for-dollar 说明反击的规模按金额匹配，并不表示每一种商品都会采用完全相同的税率。

新闻原文： Prime Minister Mark Carney has said a fresh wave of US tariffs/ˈtærɪfs/（关税） on Canada is a "miscalculation" designed to "hurt and divide us", after trade talks collapsed/kəˈlæpst/（破裂） late on Friday. "They asked too much and they offered too little," Carney told Canadians on Saturday morning, adding the country was now in a trade "war" after being hit with punishing new US duties/ˈdjuːtiz/（进口税）. The prime minister confirmed he would match US tariffs "dollar-for-dollar" from 8 September, including levies/ˈleviz/（征税） on steel, dairy, appliances and electronics.

怎么用： match something dollar-for-dollar 表示按金额一比一匹配。它常见于关税、捐款和企业配捐，例如公司对员工捐款进行 dollar-for-dollar match。

💡 The employer will match staff donations dollar-for-dollar up to $1,000.（雇主会对员工捐款进行一比一配捐，上限为 1000 美元。）

8. limited in scope /ˈlɪmɪtɪd ɪn skəʊp/ adjective phrase（范围有限的）

新闻背景： 50% 的税率很高，但本轮措施只覆盖约 200 亿美元商品，约占加拿大对美出口总额的 5%。limited in scope 能同时保留“影响严重”和“覆盖面不大”这两个事实。

新闻原文： Both countries were optimistic/ˌɒptɪˈmɪstɪk/（乐观的） of a deal earlier in the week, but talks fell apart after both sides accused the other of making last-minute changes. Now that talks have broken down, Canada has been hit with new 50% US tariffs on a range of Canadian goods, in addition to existing US tariffs on Canadian steel, aluminium, automobiles and lumber/ˈlʌmbə/（木材）. The new tariffs are limited in scope, covering about $20bn (£15bn; C$28bn) of Canadian imports, or about 5% in total, including wine, dairy, cement, clothing and hockey equipment.

怎么用： scope 指项目、政策或调查覆盖的边界。limited in scope 不等于“无关紧要”，只说明影响集中在特定对象或范围内。

💡 The pilot was limited in scope but still revealed a serious security flaw.（这项试点范围有限，但仍暴露出一个严重安全缺陷。）

记忆钩子

• expand its reach：把 reach 想成一张向外铺开的网，覆盖到更多人，就是扩大触达范围。

• underscore the need for：underscore 本义是“在下面画线”，一场事故像红笔一样把某项需求再次划出来。

• dollar-for-dollar：两个金额左右对齐，一美元对应一美元；读到这个结构就想到“等额匹配”。

今日一句可偷走的英文

The incident underscored the need for a guided experience that was limited in scope.

这句话适合产品复盘：事故暴露出引导不足，但改进可以先控制在一个小范围内。underscore the need for 交代原因，guided experience 和 limited in scope 分别说明方案与边界。

小测验

1. The recurring safety incidents ___ stronger monitoring throughout the model-development lifecycle.

○ A. expanded their reach
○ B. were dollar-for-dollar
○ C. underscored the need for
○ D. reproduced the findings  

2. New users wanted a more ___ instead of facing an open-ended chatbot.

○ A. research taste
○ B. guided experience
○ C. reverse federalism
○ D. limited scope  

3. Canada said it would match the new US tariffs ___ from 8 September.

○ A. dollar-for-dollar
○ B. in research taste
○ C. by guided experience
○ D. under reverse federalism  

4. Accuracy alone was not enough; the agent also had to show ___ when choosing worthwhile experiments.

○ A. a wider reach
○ B. a tariff match
○ C. a trial version
○ D. research taste  

5. The online program uses AI avatars to ___ beyond students who can attend campus classes.

○ A. limit its scope
○ B. expand its reach
○ C. match dollar-for-dollar
○ D. fall apart  

6. The 50% tariff sounds sweeping, but the measure is ___ because it covers about 5% of Canadian exports to the US.

○ A. guided in experience
○ B. federal in reverse
○ C. limited in scope
○ D. wider in reach  

7. 挑战题｜科研语境： Another laboratory follows the published method and obtains the same result. Which expression best describes its achievement?

○ A. reproduce the findings
○ B. expand its reach
○ C. match dollar-for-dollar
○ D. limit the scope  

8. 挑战题｜政策路径： States adopt compatible AI safeguards first, and those rules later become the basis for a national standard. What is this approach called?

○ A. research taste
○ B. a guided experience
○ C. paper replication
○ D. reverse federalism  

9. 挑战题｜辨别边界： Which sentence correctly says that a policy covers only a narrow set of products without claiming that its impact is trivial?

○ A. The policy is dollar-for-dollar, so it affects every import.
○ B. The policy is limited in scope, although the covered industries may face high costs.
○ C. The policy reproduces the findings across all sectors.
○ D. The policy expands its reach by covering fewer products.  

答案与解析

1. C — underscore the need for The clue is recurring safety incidents, which provide evidence that stronger monitoring is necessary. reproduce the findings belongs to research replication and cannot explain why safeguards are needed.

2. B — guided experience The clue is instead of facing an open-ended chatbot, which points to prompts and step-by-step direction. research taste describes judgment about worthwhile experiments, not an onboarding flow.

3. A — dollar-for-dollar The clue is match the new US tariffs, so the response is equal in monetary scale. reverse federalism describes a route from state rules to a national standard and does not express equal value.

4. D — research taste The context clues are accuracy alone was not enough and choosing worthwhile experiments; both point to scientific judgment. a wider reach concerns audience size, not experiment selection.

5. B — expand its reach The clue is beyond students who can attend campus classes, which describes serving a broader audience. limit its scope would mean narrowing coverage, the opposite of the sentence.

6. C — limited in scope The clue is covers about 5%, which identifies a narrow boundary despite a high rate. guided in experience is not the natural form of guided experience and says nothing about policy coverage.

7. A — reproduce the findings The context clues are follows the published method and obtains the same result, the core of scientific replication. expand its reach concerns access or audience and cannot describe experimental confirmation.

8. D — reverse federalism The clue is the direction states ... first and later ... a national standard. paper replication repeats scientific work, while this question concerns how regulation moves between levels of government.

9. B — limited in scope The clue is only a narrow set of products, while may face high costs preserves the seriousness of the impact. Option A wrongly turns equal-value retaliation into a claim about universal product coverage.

信息来源

• TechCrunch：Harvard’s $699 startup bootcamp offers AI avatars of its instructors

• TechCrunch：Inherent says its AI teammate outperformed larger models at replicating research

• TechCrunch：OpenAI says California should strengthen its AI safety bill

• BBC：Carney calls Trump’s fresh tariffs a “miscalculation” after trade talks collapse