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.
許多魚類和鳥類在河口豐富的生態系統中繁衍生息。
• The ship sailed slowly up the estuary towards the port.
船隻緩慢地駛過河口,駛向港口。