每日雅思词汇：关于睡觉的词组　　打盹儿nod off/snooze/ take a nano nap/ take a little catnap; 　　打瞌睡doze off; 　　小睡catch a wink; 　　睡得很沉sleep like a log/be a heavy sleeper; 　　睡觉容易醒be a light sleeper; 　　去睡觉hit the sack/hay; 　　睡一整天sleep around the clock