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1.The engineer designed a wing trenches to divert the water flow.
工程师设计了一个翼形隧道来引导水流。
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2.The construction of the wing trenches was completed ahead of schedule.
翼形隧道的建设提前完成。
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3. The wing trenches were used as a drainage system for the flooded area.
翼形隧道被用作洪水区域的排水系统。