“你从什么时候睡觉到什么时候起床？” "What time do you sleep and what time do you wake up?" "From what time do you sleep and what time do you wake up?" "From what time do you sleep to the time that you wake up?" "When do you sleep and when do you wake up?" 短短来说你也可以问 "From when to when?" 但是这个是跟熟识的朋友来问。 A: I sleep a lot! B: From when to when? A: (I sleep) From 12am to 12pm. -_-zzZz