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最佳答案：ambulance / 5AmbjulEns/ 救护车bike / baik/ 自行车bicycle / 5baisikl/ 自行车motorcycle / 5
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最佳答案：an indispensable toolThe computer are now an indispensable tool in many business
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最佳答案：vehicle 交通工具tools for communication and transportation 交通运输的工具（很直白的翻译）
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最佳答案：different means of transportationtransportation 是名词,transport 是动词.当然要用名词呀
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最佳答案：two kinds of transport
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最佳答案：What online chatting tools do you often use?
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最佳答案：I choose to bus and taxi in the city is the traffic tools as