They want to get as far away from each other possible, the ideal angle is 120. But what we have here is a four-membered ring, so what angle does 90° that have to be, that bond? 90 degrees.

它们想要尽量远离彼此，最理想的是形成120°键角,但现在是个四元环,所以这键角应该多大？

麻省理工公开课 - 化学原理课程节选

so ideally I sort of want to get a Ph.D with sociology so that I can go international travel,

所以，理想状态下，我有点想要拿到社会学的博士学位，这样我就可以跨国旅游了，

在美国旅游的经验 - SpeakingMax英语口语达人

Right there, and I'd like you to ook at that in your handout.

着手做这个理想的类了,我想要讲讲概念。

麻省理工公开课 - 计算机科学及编程导论课程节选