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1.The engineers double trenched the road to improve drainage.
工程师们对道路进行了双重挖掘,以改善排水。
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2.The farmers double trenched the field to prepare for planting.
农民们对田地进行了双重挖掘,以准备播种。
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3. The construction company double trenched the foundation to ensure stability.
建筑公司对基础进行了双重挖掘,以确保稳定性。