By the middle of the sixteenth century, financiers and traders commonly accepted bills of exchange in place of gold or silver for other goods.

到了16世纪中叶，金融家和商人普遍接受汇票来代替黄金或白银进行商品交换。

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Here is a two-way student exchange in action.

这里正在进行一个双向的学生交换活动。

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The leatherback is certainly not the only animal with such an arrangement; gulls have a countercurrent exchange in their legs.

当然并不只是棱皮龟有这种结构，海鸥的腿部也有一个逆流交换系统。

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If his plan failed, he could offer them in exchange for his own freedom and that of his men.

VOA: special.2009.06.25

Then it undergoes a reorganization in which the vice neutrons, assistants to the neutron, the assistants to the vice neutrons exchange places.

而开始重组,其中，副中子，辅助中子，辅助副中子，开始交换位置。

麻省理工公开课 - 固态化学导论课程节选

I was only myself, Sal Paradise, sad, strolling in this violet dark, this unbearably sweet night wishing I could exchange worlds with the happy, true-hearted, ecstatic Negroes of America.

引-我只是我，萨尔·佩拉提斯，无精打采地徘徊在这个，温柔的难以忍受的夜晚，多希望自己能够变成,一个快乐，真诚，热情奔放的美国黑人。

耶鲁公开课 - 1945年后的美国小说课程节选

The outdoor-ad auction system is run by Vistar Media, which launched the exchange in January.

WSJ: Auction System Helps Place Digital Outdoor Ads

They had previously sold 16% of Oaktree on a private Goldman Sachs exchange in 2007.

FORBES: Howard Marks

Next up: a multicommodity exchange in Mauritius, which can be a window to Africa.

FORBES: Magazine Article