501　obvious，apparent和evident

① obvious指事情很突出，不可能视而不见或想不到。

His exhaustion was obvious when he fell asleep standing up. 他站着睡着了，疲倦程度是显而易见的。

② apparent指眼一看或心里朝某方面一想就清楚明白。

A dent in the fender is apparent. 防护板上的凹痕清晰可见。

③ evident由于所有一看就明了的事实都针对某一事情或事物而使人清楚明白。

When he did not drive the car home，it was evident that he had had an accident. 当他没有把车开回家时，显然他是出事故了。