fast fall asleep/ fall fast asleep 哪个对?

fast fall asleep/ fall fast asleep 哪个对? fast fall asleep/ fall fast asleep 哪个对?有助于回答者给出准确的答案 I fall ___ asleep.为什么要填fast 而不是quickly be fast asleep与fall asleep的区别.顺便分别造句来说明他们的不同. fast asleep/sound asleep if you r_____ yourself before going to bed ,you can fall asleep fast asleep sleepy fall asleep feel asleep 区别 fall asleep 可以fall sleep 1 fall asleep造句 fall asleep的同义词 fall asleep是什么意思 fall asleep in no fall back asleep sleep,sleepy,asleep,sleeping,fall asleep区别 fell asleep 和fall asleep区别 fall asleep,asleep.sleep有什么区别? fall asleep中asleep什么词性 fall sound asleep,fall soundly asleep 哪个对啊