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He started the car, which hummed smoothly...他发动了汽车，车发出平稳的嗡嗡声。He hummed to himself as he opened the trunk.他独自哼着曲子打开了车子的后备箱。He tapped his feet, hummed tunes and jiggled about...他脚下打着拍子，嘴里哼着调子，身子晃来晃去的。He hummed and hawed, g...
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He tapped his feet, hummed tunes and jiggled about.他脚下打着拍子，嘴里哼着调子，身子晃来晃去的。He started the car, which hummed smoothly.他发动了汽车，车发出平稳的嗡嗡声。The birds sang, the bees hummed.鸟儿叫，蜂儿鸣。...
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v.发出嗡嗡声，哼唱( hum的过去式和过去分词 )，忙碌，活跃...