例句：
你若翻个身，也许入睡容易些。
If you turn over you might find it easier to get to sleep.
最近几个晚上我一直无法入睡。
I've not been able to sleep for the last few nights.
对他来说，阅读是入睡的必要前奏。
For him, reading was a necessary prelude to sleep.
那一夜我无法入睡，我太激动了。
I wasn't able to sleep that night, I was so keyed up.