名词
中文翻译：水闸
同义词：
['dam', 'sluice', 'lock']
例句：
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1.The engineer designed a new dam to control floods.
工程师设计了一座新的大坝来控制洪水。
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2. The river flows through the sluice, which is part of the dam.
河流流经大坝的闸门，这是大坝的一部分。
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3. The lock was built to allow boats to pass through the dam during low water levels.
这个闸门被建造出来，以便在水位较低时让船只通过大坝。