英语翻译sleep后不加for吗

英语翻译sleep后不加for吗 i sleep for eight hours.中的for必须用吗? go to sleep for maybe only the student in the university haven't a good law for a sleep.这句话有语法错误吗for a sleep 还是of the sleep 英语翻译I find it easy _______ (sleep) well after working for a whole day 英语翻译句中的sleep right sleep for 20 hours sleep 20 hours 哪一个更正确 sleep nine hours和sleep for nine hours两者都在文中见过,到底哪个是正确还是都正确,为什么,不应该家for吗 英语翻译Often tangled recently,I want to sleep for a long time the left side or the right side get to sleep 和 sleep相等吗 get to sleep 和 sleep相等吗 有How many hours do you sleep for every night吗 It's important to sleep well for your health这句话符合语法吗 for后跟一段时间的时候可否省略?可以说 They sleep less than nine hours吗 Enough sleep is () for your health. Eboungh sleep is for your health I sleep for nine hours every night will sleep for food 怎么翻译啊?