sink hole
缩孔
灰岩坑
例句与用法：
The ship sank.
船沈没。
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。
My feet sank into the mud.
我的双脚陷到泥里去了。
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。
The ship was sunk by an enemy torpedo.
这艘船被敌人的鱼雷击沉了。
The dirty dishes are in the sink.
那些脏盘子在洗涤槽内。
词形变化：
形容词: sinkable | 动词过去式: sank/sunk | 动词过去分词: sunk | 动词现在分词: sinking | 动词第三人称单数: sinks |