Listen, Richard,doing aerobics for an hour is a lot different than lifting weights.
听着, Richard,一小时的有氧运动可与举重大不相同。
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。