/sli:p ||; slip/noun1 [U] the natural condition of rest when your eyes are closed and your mind and body are not active or conscious 睡觉;睡眠: Most people need at least seven hours' sleep every night. 大多数人每晚至少需要睡七个小时。I didn't get much sleep last night. 昨天晚上我没睡多久。Do you ever talk in your sleep? 你睡觉时说梦话吗?I couldn't get to sleep last night. 昨晚我睡不着。
2 [sing] a period of sleep 睡眠时间: You'll feel better after a good night's sleep. 你好好睡一觉就会觉得好些。I sometimes have a short sleep in the afternoon. 我有时候在下午睡一会儿。
go to sleep 1 to start sleeping 入睡: He got into bed and soon went to sleep. 他上床不久便睡着了。
2 (used about an arm, a leg, etc) to lose the sense of feeling in it (指手臂、腿等)麻木
put (an animal) to sleep to kill an animal that is ill or injured because you want to stop it suffering 杀死动物(因动物生病或受伤,免其受折磨)