money-changer

n person whose business is to change money of one country for that of another, usu at the official rate 外币兑换商（通常指按官价兑换的）.

Mon, mon(o)-, monarch, monarchic, monarchism, monarchist, monarchy, monastery, monastic, monasticism, monaural, Monday, monetarism, monetarist, monetary, money, money order, money-back, money-bags, money-box, money-grubber, money-grubbing, money-lender, money-maker, money-making, money-market, money-spinner, moneyed, moneyless, monger, mongol, mongolism, mongoose, mongrel, monitor, monk, monkey, monkey business, monkey-nut, monkey-puzzle,