Love is often nothing but a favorable exchange between two people who get the most of what they can expect, considering their value on the personalitymarket.

爱往往仅仅是两个人类之间的某种有益的交换，他们通过自己在人格市场上的价值，得到最大的收益。（请帮忙检查这句，我不太有把握）

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Steve Smith and Carmen Ruiz-Perez, both now 42, fell in love 17 years ago when she was a foreign exchange student in southwest England, and got engaged after only a year together.

现年42岁的史蒂夫·史密斯17年前和作为交换留学生来到英格兰西南部与他同岁的卡门·路易兹·佩雷兹坠入爱河，相爱仅仅一年两人就订婚了。

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International cultural exchange usually begins with international trade. The exchange of top-quality commodities promotes mutual love and understanding between nations.

国际间的贸品，常常是文化交流的开端，精美的商品的互换，促进了两国人民相互的爱慕与了解。

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I personally love to shop at Armani Exchange

我个人喜欢在阿玛尼购物。

享受周五夜晚 - SpeakingMax英语口语达人

Aside from that, I love to exchange dialog from the game.

FORBES: Move up http://i.forbesimg.com t Move down

Jason Tyldesley, CSL's managing director at its headquarters near Warrington, said customer loyalty and sales had been helped by "a unique 'love it or exchange it' guarantee which takes the uncertainty out of buying a sofa".

BBC: A CSL store

Not surprisingly, many companies would dearly love to lock in a lower exchange rate.

ECONOMIST: Foreign investment