河口的

例句：

1. 1. The river flows into the sea at the mouth of the delta.
   这条河在三角洲的河口流入大海。
2. 2. The fishermen gather at the mouth of the river to catch their daily catch.
   渔民们聚集在河的河口捕鱼。
3. 3. The estuary is a vital habitat for many species, including birds and crabs.
   河口是许多物种的重要栖息地，包括鸟类和螃蟹。