sinking by boring method

例句：

1. 1.The ship was sinking fast in the stormy sea.
   这艘船在暴风雨中迅速下沉。
2. 2. The boat sank to the bottom of the lake.
   船沉到了湖底。
3. 3. The city is sinking into the ground due to pollution.
   由于污染，这个城市正逐渐下沉到地面。