Pieces of gypsum broke off. The wind wore them away to a size small enough to pick up and carry for short distances.

VOA: special.2010.01.04

It will wash away and so you got to pick the right materials in order to build a bridge.

它可能会被水冲走,之后人们就会选择更好的材料,以造出了更为坚固的桥

耶鲁公开课 - 生物医学工程探索课程节选

Would you go to the ticket window and use your credit card to pick up the tickets or would you just walk away in anger and annoyance?

你会去购票窗口,用你的信用卡再买票吗,还是带着烦闹愤怒而走掉呢？

耶鲁公开课 - 金融市场课程节选