fall asleep,asleep.sleep有什么区别?

to sleep,asleep,slept,fall sleep 有什么区别? sleep fall asleep be asleep区别 sleep,sleepy,asleep,sleeping,fall asleep区别 fall sleep和fall asleep的区别? sleep,sleepy,asleep有什么区别 asleep 和sleep 有什么区别 fall asleep 、 be asleep、 go to sleep的区别 fall asleep ,go to sleep的区别 fall asleep与go to bed 和go to sleep有什么区别 asleep sleepy fall asleep feel asleep 区别 fall asleep 可以fall sleep fall asleep,go to sleep,get to sleep,go to bed 这四个短语有什么区别及翻译