trade in

基本解释

Then I will give your brother back to you, and you can trade in the land.
这样，我就把你们的弟兄交给你们，你们也可以在这地做买卖。
He pointed out, the trade in a country is determined by the market and its degree of openness, not by the exchange rate.
他表示，一个国家的贸易是由其市场和其开放程度来决定的，而不是由一个国家的汇率来决定的。
But even then, it took a decade to phase them out. So it was not until 2005, more than half a century after protection began, that trade in textiles and apparel was finally liberalized.
但即使如此，这种保护又经过十年才寿终正寝，也就是直到2005年，在保护主义实施了半个多世纪之后，纺织与服装业的贸易最终实现了自由化。

The researchers say the United States represents more than fifty percent of the trade in coral and reef fish.
He urged revival of the slave-trade in the late 1850s, and he developed a theory of what he called warranteeism--w-a-r-r-a-n-t-e-e-I-s-m.
他促成了十八世纪五十年代后期,奴隶交易的复苏,还自己发明了一套理论,名为抵押品主义
耶鲁公开课 - 美国内战与重建课程节选
You'd have to be an authorized participant, but if you become an institution you can get authorized to trade in the auction.
只有授权参与商才可以参加,如果你是一个商业机构,你可以获得授权参与交易
耶鲁公开课 - 金融市场课程节选

Yet the cheap system processed a trade in 50 milliseconds, one-fourth the time needed by the Sun system.
FORBES: The New Barbarians