This is a very important problem, but he just sleepsonit.
这个问题很重要, 可他却不了了之。
《新英汉大辞典》
2
The smile that flickers on baby’s lips when he sleeps—does anybody know where it was born?
当孩子睡时,在他唇上浮动着的微笑--有谁知道它是从什么地方生出来的?
3
The app has been indispensable to our son Khalil’s sleep; with the sound on, he sleeps fitfully, but without it we have the sort of disaster that would make Jerry Bruckheimer proud.