sink

descend, drop, fall, sink

这些动词都表示“落下，下降”之意。
descend: 通常指沿斜线或斜坡下降。
drop: 指物体从一定高度落下。
fall: 与drop同义，指突然或猛烈地降落，但fall也可指任何下落，同高度或形式无关。
sink: 指在空气或水中垂直下降、下沉。

名词 sink:

1. plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe
2. (technology) a process that acts to absorb or remove energy or a substance from a system
3. a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof
   同义词：sinkhole, swallow hole
4. a covered cistern; waste water and sewage flow into it
   同义词：cesspool, cesspit, sump

动词 sink:

1. fall or drop to a lower place or level
   同义词：drop, drop down
2. cause to sink
3. pass into a specified state or condition
   同义词：pass, lapse
4. go under, "The raft sank and its occupants drowned"
   同义词：settle, go down, go under
5. descend into or as if into some soft substance or place
   同义词：subside
6. appear to move downward
   同义词：dip
7. fall heavily or suddenly; decline markedly
   同义词：slump, fall off
8. fall or sink heavily
   同义词：slump, slide down
9. embed deeply
   同义词：bury

1. The ship sank.
   船沈没。
2. Rub the cream on your skin and let it sink in.
   把这种软膏搽在皮肤上，让它渗进去。
3. My feet sank into the mud.
   我的双脚陷到泥里去了。
4. It was several days before the floodwater sank and life returned to normal.
   过了几天，洪水才退，生活恢复了正常。
5. The ship was sunk by an enemy torpedo.
   这艘船被敌人的鱼雷击沉了。
6. The dirty dishes are in the sink.
   那些脏盘子在洗涤槽内。