河口, 入海口
the tidal mouth of a large river, where the tide meets the stream
:
• Many species of fish and birds thrive in the rich ecosystem of the estuary.
许多鱼类和鸟类在河口丰富的生态系统中繁衍生息。
• The ship sailed slowly up the estuary towards the port.
船只缓慢地驶过河口，驶向港口。
