Then the waiter came over and cut his tip in half...

后来服务生走过来 害他损失了一半的小费。

So imagine you're slicing a nice garlic-cheese bagel one morning, and you lacerate the distal phalanx of your pollex — in other words, you cut the tip of your thumb.

想象一下，某天早上你正在切一个美味的大蒜芝士百吉饼，你的指骨末梢被割伤了——换句话说，你割伤了你的拇指尖。