I used to stop for hitch-hikers'till the day I picked up that maniac.
自从有一天搭了一个精神病人以后,我碰到搭顺风车的人就不再停下来了。
and one odd finding that makes the problem puzzling is that it looks very much as if sleeping is not simply a matter of giving the body a rest.
一项使人对这个问题感到困惑的奇怪的发现是,睡眠在很大程度似乎并不仅仅是为了使身体得到休息。