sleep什么意思英语,sleep什么意思怎么读

don't sleep in class.
那么,"sleep over"到底是什么意思呢?
i must sleep. i wave goodbye.
02you can get a good night's sleep全国第十届英语优质课获奖课件
椰子单词库61词根somn和sleep衍生词_英语学习_教育