对调的英文：
exchange; swop

Flop: To turn over the film so that a mirror-image is produced.
反转:把菲林反转以获得左右对调的影象

regional exchange
美国在纽约以外地区的证券交易所

This exchange takes place in the foreign exchange market.
汇兑是在外汇交易市场上进行的。

He gambles on the stock exchange.
他从事股票投机。

Sometimes we exchange with words.
有时我们相互交谈几句。

I'll exchange it for a token.
我给你换个专用辅币。

Never swap (or swop) horses while crossing the stream.
骑渡中流莫换马。