名词
中文翻译：洪水开口
同义词：
['flood opening', 'flood gate', 'floodway', 'waterway例句：1. The flood opening in the river is a critical area for flood control.（河流中的洪水开口是防洪控制的关键区域。）2. The flood opening was closed due to heavy rains.（由于大雨，洪水开口被关闭了。）']
例句：
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1. The flood opening in the river is a critical area for flood control.
河流中的洪水开口是防洪控制的关键区域。
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2. The flood opening was closed due to heavy rains.
由于大雨，洪水开口被关闭了。
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3. The flood opening is crucial for maintaining the water level in the reservoir.
洪水开口对于保持水库水位至关重要。