lie down
phrasal verblie down
to be or get into a flat position, especially in bed, in order to sleep or rest 躺下，平卧（尤指在床上睡觉或休息） Go and lie down for a while. 去躺一会儿吧。 He lay down on the sofa and soon fell asleep. 他在沙发上躺下，很快就睡着了。 He was lying down on the bed. 他躺在床上。