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The miners trooped home.矿工们成群结队地回家了.They all trooped back to the house for a rest...他们都成群结队地回到房子里休息。The men trooped into work with resignation.男人们被迫只好一伙伙地开始工作。The students trooped into the classroom.学生们列队走进教室....
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vi.成群结队地走（troop的过去式与过去分词形式）...
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The men trooped into work with resignation.男人们被迫只好一伙伙地开始工作。The miners trooped home.矿工们成群结队地回家了.The students trooped into the classroom.学生们列队走进教室....