New Words：

exchange [iks'tʃeindʒ]
n.交换；交流；交易所；兑换
v.交换；交流；交易；兑换

in exchange for 作为……的交换

Sample Sentences：

Would you like my old TV in exchange for this camera?
I buy you lunch and you fix my computer. Is that a fair exchange?

I'd like to exchange some pounds for dollars.
Everyone in the group exchanged email addresses.
We exchanged our opinions about the accident at the meeting.

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