n. 盥洗室, 厕所, 洗手间, 洗脸盆, 抽水马桶, 洗礼盆, 公共厕所
n a room or building equipped with one or more toilets
1.I thought, and poured it down the lav.
我这样想着 然后把它们倒进马桶
2.Ma'am, I'm afraid I'm gonna need you to vacate the lav.
女士 恐怕得请您离开洗手间
3.Big house pke this, there's got to be a lav somewhere.
像这样的大房子 一定会有卫生间