We need to promote an open exchange of ideas and information.

　　我們需要促進思想和信息的公開交流。

　　We'll take your car in part exchange.

　　我們收下你的舊汽車，以抵付購買新車的部分款額。

　　Our school does an exchange with a school in France.

　　我們學校與法國的一所學校進行交流。

　　Would you like my old TV in exchange for this camera?

　　用我的舊電視機換這架照相機，你愿意嗎？

　　Cultural exchanges are a way of building bridges between countries.

　　文化交流是各國之間建立聯系的紐帶。