And if you remember this phrase, I don't know why you would, but this will help you learn the lanthanides in order.

如果你能记得这句话的话，我不管你们是怎么做到的，但是这个确实会帮助你按顺序记住镧系元素。

麻省理工公开课 - 固态化学导论课程节选

PROFESSOR: So, as you're getting your ping-pong balls -- do not throw them yet.

如果你觉得，你的准心很好的话，你们现在都拿到乒乓球。

麻省理工公开课 - 化学原理课程节选

And when you walk out today and you go through Woolsey Hall, if you haven't done this before, that that's full of the names of Yale College men who have died in war.

如果你还没穿过华西大厅话,当你走出教室,穿过那的时候,那里布满了阵亡的耶鲁大学生的名字

耶鲁公开课 - 美国内战与重建课程节选

If your have good eyesight from the distance that you're at you can see the vessels leading out of the heart and into the lungs, and the lungs are these darker spaces within the ribcage.

如果你的视力足够好的话,你们能看到,由心脏发出血管,进入到肺部,肺是胸腔里这片比较暗的部分

耶鲁公开课 - 生物医学工程探索课程节选