What I just spent many lectures discussing is the fact that we can not know how far away an electron is from the nucleus, so we can't actually know the radius of a certain atom.

我花了这么多课时所讨论的正是我们,不可能知道电子离原子核有多远这一事实，因此我们不可能知道某个原子的半径。

麻省理工公开课 - 化学原理课程节选

It might be like a single, a single mother, you know. She might not get home from work until like 6.

也有可能是个单亲母亲。她下班到家可能要6点之后了。

哈莱姆的变迁 - SpeakingMax英语口语达人

You know that buying gold coins from some newspaper ad is not a smart investment, but they know that there will be people out there.

你们明白购买报纸广告上宣传的金币,是一种不明智的投资选择,但销售商知道总会有人上钩

耶鲁公开课 - 金融市场课程节选

We know from last time that you should not choose a dominated strategy, and we also know we probably aren't going to choose a weakly dominated strategy, and we also know that you should put yourself in other people's shoes and figure out that they're not going to play strongly or strictly or weakly dominated strategies.

上节课我们学到了,不要采用劣势策略,然后今天我们学到了,我们有时可能不会选择弱劣势策略,我们还学会了站在别人立场上思考,然后推测出他们不会选择,严格劣势策略或弱劣势则略

耶鲁公开课 - 博弈论课程节选