名词
中文翻译：河口
同义词：
['coastal', 'delta', 'mouth例句：1. The estuary of the river is a popular spot for bird watching.（这条河的河口是观鸟的好地方。）']
例句：
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1. The estuary of the river is a popular spot for bird watching.
这条河的河口是观鸟的好地方。
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2.The estuary is home to many species of fish and shellfish.
这个河口栖息着许多鱼类和贝类。
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3.The estuary is a critical habitat for migratory birds.
这个河口对候鸟来说是一个关键的栖息地。