一种可能性是让污染者为排放温室气体而付出代价。
One possibility is to make polluters pay for the cost of greenhouse gas emissions.
他为自己所感到的恐惧而愤怒：害怕接触，就好像说他跟别人一样相信麻风病人是为他们的罪过付出代价，并且将感染任何一个靠近他们的人。
He was outraged at the fear he felt: fear of touching, as if he Shared the common belief that lepers were paying for their SINS and would infect anybody who came close.
通过将基本的功能从线程安全性中分离开来， Collections.synchronizedMap 允许需要同步的用户可以拥有同步，而不需要同步的用户则不必为同步付出代价。
Separating the base functionality from the thread-safety Collections.synchronizedMap allowed users who needed synchronization to have it, but users who didn't need it didn't have to pay for it.
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