This is a sign of my economic status: I don't have to work. It is middle and lower-class women who do not get to observe purdah in this way.

但这恰好是我经济地位的标志：,我不需要工作，只有中下阶层的女人,才像这样不遵守深闺的习俗。

普林斯顿公开课 - 人性课程节选

There's no price per share that you can observe and the banks can't do anything except passively receive the dividend.

这里没有可以观察到的每股价格,这些银行也不能做任何事,除了被动地接受股利。

耶鲁公开课 - 金融市场课程节选

Jews didn't have to--they could observe the Sabbath, they didn't have to do things on the Sabbath that they didn't want to.

犹太人不必。。。可以过安息日，安息日那天他们不用做不想做的事。

耶鲁公开课 - 新约课程节选

That shall go to the stranger, the orphan Always remember you were a slave in the land of Egypt, therefore do I enjoin you to observe this commandment.

要留给寄居的与孤儿,寡妇，你也要记念你在埃及地作过奴仆，and，the，widow…,所以我吩咐你这样行。

耶鲁公开课 - 旧约导论课程节选