纯交换的英文：
pure exchange

All things are pure to the pure.
对洁净的人，凡物都洁净。

But that is pure bluster.
然而这纯粹只是夸夸其谈而已。

He is Spaniard pure and simple
他是一个纯血统的西班牙人

The air by the sea is pure and healthy.
海边的空气清新又有益健康。

He bought it purely as an investment.
他纯粹是作为投资而购买的。

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。