She tried to break through the national barriers that hindered the exchange of ideas among the Spanish speaking peoples of South America.

她试图打破阻碍南美洲西班牙语民族之间思想交流的国界壁垒。

youdao

How time flies! It is two years since I began to study abroad on my student exchange program in America.

时间过得多快！我参加美国交换生项目已经有两年的时间了。

youdao

Hello. Are you exchange student from America?

你好。你是美国来的交换生吗？

youdao

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

So, in the near future, you might wind up headed to your local Wells Fargo or Chase or Bank of America branch to exchange these scrips for stone-cold cash.

FORBES: Experts Agree: U.S. May Become A 'Simpsons' Episode And Need Platinum Coins Or IOUs

Average living standards in China are still only a sixth and in India a fourteenth of those in America at PPP exchange rates, but the gap is already much smaller than it was and is closing fast.

ECONOMIST: A game of catch-up

The Philadelphia Stock Exchange , America's oldest, agreed in principle to merge with the American Stock Exchange and the National Association of Securities Dealers, which themselves plan to merge.

ECONOMIST: Slipped