我已经睡着了 翻译 是用fall asleep 还是 be asleep 为什么

英语问题,快.fell asleep中asleep不已经是睡着了吗,为什么这个词组也是睡着了?fell在这如何翻译? sleep fall asleep be asleep区别 fall asleep与be asleep区别 为什么是be fast asleep 而不是be fastly asleep? 昨晚我太累了,一躺在床上就睡着了.翻译英语,提示个短语fall asleep fall asleep i am too tired to fall asleep. 到底是太累了睡着了,还是太累了睡不着. fall asleep与be asleep有什么不同 be fast asleep与fall asleep的区别. fall asleep 、 be asleep、 go to sleep的区别 asleep sleepy fall asleep feel asleep 区别 fall asleep 与drop asleep