and I think that's one of, I guess, the biggest cultural clashes, especially with Americans going abroad,

我认为这是一种激烈的文化碰撞，特别是对出门在外的美国人，

关于全球化 - SpeakingMax英语口语达人

And so the photons hitting the wall actually put pressure on the wall, but the pressure is so low.

所以光子碰撞墙面,事实上在对墙加压，但只是压力很小。

麻省理工公开课 - 固态化学导论课程节选