1·They deal in antiques.
他们经营古董生意。
—— 《柯林斯英汉双解大词典》
2·They deal in words, of course, because marketing's ultimate objective is to own a word in the mind. But they want simple words that can easily be visualized.
他们经营文字，因为行销的最终目标就是获得具有意义的关键词，但他们需要的是可视觉化的简单文字。
3·Brokers were paid a fixed minimum commission on shares and gilts, which ripped off big clients, and jobbers lacked the capital to deal in big amounts.
股票经纪人的手续费是固定的，这使得大客户深为不满，而做市商缺乏资本经营大宗业务。
4·We deal in hardware but not software.
我们只经营硬件而不经营软件。
5·B: Sorry, we don't deal in foreign currency.
对不起，我们不经营外币。
1·Matthew: since you deal in the same product.
马休： 因为你们经售相同的产品。