exchange xo付凭证
exchangev.交换;兑换n.交换;交易所;兑换;交战
exchange commission
exchange words with与 ... 争辩与 ... 吵架
Exchange technology
exchange of traffic
exchangeable sodium交换性钠,可交换性钠
exchange of letters书信往来
exchangeable cation代换性阳离子
exchange rate level
exchangeable theory
exchange absorption