buying and selling;business;shop;deal;buy ;

The marketplace was jammed with a noisy crowd of buyers and sellers.
集市上熙熙攘攘挤满了买卖东西的人。
来源:《柯林斯高阶英汉双解学习词典》He's been studying and playing the stock market since he was 14.
他从14岁起就一直在研究和买卖证券。
来源:《柯林斯高阶英汉双解学习词典》
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