名词
中文翻译：Unknown
同义词：
['dam', 'barrier', 'embankment', 'fortification']
例句：
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1. The construction of the new dam has been a major project in the region.
新大坝的建设是该地区的一项主要工程。
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2. The embankment is designed to withstand heavy rain and floodwaters.
堤岸设计用来承受大雨和洪水。
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3.The fortification was built to protect the city from invaders.
要塞是为了保护城市免受侵略者的攻击而建造的。