沉落

例句：

1. 1.The ship sank to the bottom ofthe sea.
   船沉到了海底。
2. 2. The sunset, and the temperature dropped significantly.
   太阳落山了，温度明显下降。
3. 3. Thecity was sinking into the abyss.
   这座城市正逐渐沉入深渊。