Even if we put a catch in the cylinder to stop the piston at some point in its rise, we still can't calculate work.
既使我们把一个制动片放进气缸以阻止活塞在某点继续上升,也不能计算功。
We put a bucket under the hole in the roof to catch the drips.
我们在屋顶漏洞下放了一个水桶接水滴。
Now if happiness is contagious, don't you want to put yourself in a position to catch it?
那么,如果幸福是会传染的,你不想去抓住它么?
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