美 [fɔːl əˈsliːp]
入睡：指开始睡觉。
再次入睡：指醒来后再次入睡。
入睡
... three of us我们中的三位（总体不止三个人） fall asleep 入睡，睡着（表状态） go to bed 去睡觉（强调动作），与get up 相对。 ...
...，go bad ／mad（变坏／变疯），go wrong（堕落），keep silent（连结缄默沉静）， come true（实现了），fall asleep（睡着了），fall ill（生病），等。 3．SVO句型（主语+谓语+宾语） 这类句型中的动词都为及物动词，动词后必须跟宾语，但只跟一个宾语。
... ever since .从那时起；此后一直 fall asleep .睡觉；入睡 fall behind .落在（ ）后面；输给别人 ...
入睡；睡着
After changing the bed, I would fall asleep quickly.
更换床单后，我会很快入睡。
I can't fall asleep tonight.
今夜我无法入睡。
He still didn't fall asleep.
他仍然没有入睡。
Last August,a study in the journal Sleep Medicine said children who go to bed after nine o'clock took longer to fall asleep and slept less.
VOA : special.2010.06.09
Sleep thought" is the sort of thing you get typically before you fall asleep and it's like "did I take the garbage out, ??
半睡半醒的想法是指那些,你睡着前所想到的东西,例如“我倒垃圾了吗？
心理学导论课程节选 : 耶鲁公开课
For those of you who don't realize it, it's now about 12:00 in the evening tomorrow in Beijing Yeah, so anyway, I'll probably fall asleep by about 10:30.
对那些没有注意到的人，请于明晚12点左右联系我,不管怎么说，我会在10点半左右睡觉。
固态化学导论课程节选 : 麻省理工公开课
If he started to fall asleep, the tool would fall from his hand.
VOA : special.2009.03.18
The slow movement made Paul fall asleep.
VOA : special.2009.04.11
They stressed that the drugs may not necessarily have caused the patients to fall asleep.
"We've had some people fall asleep the second they sit back, " Ms. Sahatqija said.
They also tend to fall asleep immediately on the massage table because they are so shattered.