金银比价 金银比价的英文 英语翻译 ratio between gold and silver 拓展翻译 金银bullion金银本位货币制度bimetallic monetary system金银财宝treasure金银餐具plate金银锭bullion金银锭价值bullion value金银花honeysuckleflos lonicerae; Lonicera japonica金银经纪人bullion broker金银块bullionbullion金银块兑换费demurrage金银器皿上表不成色的标记hallmark金银市场bullion market金银丝purl金银藤ramuli lonicerae金银通货主义bullionism金银外流drain of bullion进出口比价terms of trade进出口交换比价terms of trade进出口商品比价指数index of terms of trade进出口商品交换比价指数indexes of terms of trade