foreign exchange

1. N-PLURAL Foreign exchanges are the institutions or systems involved with changing one currency into another. 外滙交易所; 外滙交易

On the foreign exchanges, the U.S. dollar is up point forty-five. 在外滙交易所，美元上漲了0.45個百分點。

2. N-UNCOUNT Foreign exchange is used to refer to foreign currency that is obtained through the foreign exchange system. 外滙

...an important source of foreign exchange. …一個外滙的重要來源。

3. N-COUNT A foreign exchange is an arrangement in which people from two different countries visit each other's country, to strengthen links between them. 外籍互換[oft N n]

He recently hosted a foreign exchange student from Argentina. 他最近招待了一名來自阿根廷的外籍互換生。