Molcohesion
分子內聚力
??? 情景例句
What kind of job do you have?
你做什么工作？
We have drapes for the living room,but we need kitchen curtains.
我們有客廳窗簾，但是我們需要廚房窗簾。
Why didn't you tell her to use her own?
你為什么不叫她用自己的？