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1.The construction crew had to clear the tunnelfor the next phase of work.
施工队必须为下一阶段的工作清除隧道。
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2. The tunnelwas cleared of debris and ready for excavation.
隧道被清理干净，准备挖掘。
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3.The construction company has been working hard toclear the tunnel and make it safe fortraffic.
建筑公司一直在努力工作，清理隧道并确保它对交通安全。