This is when you learn the laws in terms of which you can understand and explain a large number of phenomena.

从此刻开始,你们学习的理论,能帮助你理解和解释生活中的很多现象

耶鲁公开课 - 基础物理课程节选

It was only when we started to study those that we actually understood how we can best help that population.

只有当我们开始研究这些,才能了解如何帮助到整体。

哈佛公开课 - 幸福课课程节选

So, you turned in p-set 3 today, but we'll have the answers posted for you this afternoon, so you can start studying from p-set 3, even as early as tonight, if you want to, because those answers will be there for you.

今天大家应该要交第三次作业了，而我们会在今天下午将答案给大家贴出来，这样大家就可以尽快开始复习第三次作业的内容了，甚至今天晚上就可以开始，如果你需要的话，这些答案将会给你一些帮助。

麻省理工公开课 - 化学原理课程节选

Humans banded together instead of working more as individuals and started hunting animals in groups, groups of animals hunted by groups of humans.

人类开始聚集在一起,而非单独行动,人类开始集体狩猎,集体狩猎帮助人类捕获大量的动物

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The question was: Would it be plausible to say that at the early phases of A, strictly speaking,the body's not functioning, because it's so utterly dependent on help from the mother's body.

问题是，可否说在早期A阶段，严格地说，身体还未开始运作，因为其还依附于母体的帮助。

耶鲁公开课 - 死亡课程节选