名词
中文翻译：未排水沟渠
同义词：
['undrained ditch', 'undrained channel']
例句：
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1.The engineers were tasked with designing an undamaged undrained trench for the construction project.
工程师们被指派设计一个未受损害的未排水沟渠，用于建设项目。
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2. The construction crew had to excavate a deep undrained trench to access the underground water source.
施工队必须挖掘一条深的未排水沟以到达地下水源。
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3.The undrained trench was filled with sediment and debris, making it difficult for the workers to navigate.
未排水沟渠里充满了沉积物和碎片，使得工人们难以通行。