noun [具体名词]床，床铺，床位；底部，基座；花坛，苗圃；海底，河床；岩层；（车辆的）拖斗
We finally went to bed at about 4am.
我们最后在凌晨四点左右上了床。
verb [vt. 及物动词]把…固定，嵌入；与（某人）上床
I went to bed with him once, just once.
我有一次、仅有一次和他上过床。
单词造句:
We finally went to bed at about 4am.
我们最后在凌晨四点左右上了床。
I went to bed with him once, just once.
我有一次、仅有一次和他上过床。