Although we apparently have a need for REM sleep, judging from the fact that our bodies automatically compensate for a loss of it, what REM sleep actually does for us is not clear.

从我们的身体能够自动地对损失作出补偿这个事来看，尽管我们明显地需要REM Crapid eye movement睡眠，但REM睡眠对我们的身体有什么作用还不清楚。

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Judging from what's being said on talk radio, Web sites and blogs frequented by residents of Chicago, the fact that Obama put the Olympics ahead of responding to the breakdown of the social order in Chi-Town is a slap in the face.

CNN: Commentary: Obama's silence on Chicago crime