/bed ||; bɛd/noun1 [C,U] a piece of furniture that you lie on when you sleep 床: to make the bed (= to arrange the sheets, etc so that the bed is tidy and ready for sb to sleep in) 整理床铺；铺床What time do you usually go to bed ? 你通常什么时候上床睡觉？She was lying on the bed (= on top of the covers). 她躺在床上（在被子外面）。When he rang I was already in bed (= under the covers). 他打电话来的时候，我已经上床睡觉了（在被子里面）。It's late. It's time for bed. 很晚了，该睡觉了。to get into/out of bed 上床睡觉；起床
A bed for one person is called a single bed and a bed for a couple to share is a double bed. Two single beds next to each other in the same room are called twin beds. A room in a hotel with twin beds is called a twin-bedded room. Two single beds built as a unit with one above the other, used especially by children, are called bunk beds. 单人床叫 single bed，双人床叫 double bed。同屋两张相邻的单人床叫对床 (twin beds)。旅馆里有对床的房间叫做 twin-bedded room。上下两张单人床构成一个单元（尤供孩子们睡觉）的双层床叫 bunk bed。 2 -bedded having the type or number of beds mentioned 表示有某类型或数量的床: a twin-bedded room 有两张单人床的房间
3 [C] the ground at the bottom of a river or the sea 河床；海床: the seabed 海床
4 =FLOWER BED
5 [C] a layer of rock in the earth's surface （地球表面的）岩层，岩床
go to bed with sb(
informal 非正式) to have sex with sb 与某人发生性关系