exchange 法定贬值 devaluation 外币 foreign currency 法定升值 revaluation 汇率 rate of exchange 浮动汇率floating rate 国际收支 balance of payments 硬通货 hard currency 直接标价 direct quotation 软通货 soft currency 间接标价 indirect quotation 金平价 gold standard 买入汇率 buying rate 通货膨胀 inflation ...