pair-base

基本解释

You should always select a currency pair based on your views on the currency market and your own currency needs.
您应按自己对外汇市场走势的看法及实质的货币需要,选择合适的存款货币及挂鈎货币。
I bought a pair of tan leather shoes the other day.
前几天我买了双棕褐色的皮鞋。
This work is one branch of the project named The Theory and New Type Transmission Pair Based on Bertrand Surface (No. 50275017), which is supported by National Science Foundation of China.
本课题属国家自然科学基金的资助项目“基于贝特朗曲面的传动原理与新型传动的研究(编号 50275017)”的子课题。
Don't mix up this pair of synonyms.
别把这两个近义词混淆了。
He wears an oily old pair of jeans.
他穿着一条沾满油污的旧牛仔裤。