动词
中文翻译：贸易
同义词：
['exchange', 'barter', 'trade']
例句：
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1.The company is involved in various trades.
这家公司从事各种贸易活动。
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2. Trade has brought people from different parts of the world together.
贸易使来自世界各地的人们团结在一起。
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3. He traded his old car for a new one.
他用自己的旧车换了一辆新车。