hand sinking

例句：

1. 1.The ship's engine was hand sinking into the water.
   船的引擎正缓缓沉入水中。
2. 2.The boat sank slowly as it hit the rocks.
   当船撞击岩石时，它慢慢地沉了下去。
3. 3.The ground sank under the weight of the snow.
   雪的重量使地面下沉了。