变动不定的兑换率mercurial: adj. 1.〔M-〕墨丘利 (Mercury) 神的; ...exchange rate: 汇率。 exchange rates: 汇率, 汇兑率arbitrary exchange rates: 裁定汇率central exchange rates: 中心汇率下载手机词典可随时随地查词查翻译