动词oversleep的过去式与过去分词
I knew it would turn out to be one of those days when I overslept. 我明白，如果我睡过头，那结果会是很不妙的。
I'm afraid I overslept and missed my usual bus. 很遗憾我睡过头了，误了我通常坐的那班公共汽车。
`Who overslept this morning?' She quipped. ｀今天早晨谁睡过头了?＇她风趣地问。
He may have overslept this morning. 今天早上他或许睡过头了。
