You don't have to do this for Wednesday but let's say for next Monday, and that is: I'd like you to memorize a short poem by Yeats or by Frost, either one.

你们不用今天做,下星期一吧：,我想让你们背一首短诗,叶芝或者弗罗斯特的都行。

现代诗歌课程节选 : 耶鲁公开课

So verse 4, "You've seen what I did to the Egyptians, how I bore you on eagles' wings," is the historical prologue.

诗4，“我在埃及人所行的事，我将像鹰一样，将你们背在翅膀上“，就像是历史开场白。

旧约导论课程节选 : 耶鲁公开课

It's not going to be a backscatter event if your ping-pong ball hits the frame or these strings, or the top part.

打到原子核了就是背散射,如果打到框上。

化学原理课程节选 : 麻省理工公开课