您要查找的是不是：
- vacancy tracer exchange 空位示踪原子互换
- George's the best person to fill this vacancy. 乔治是填补这一空缺的最佳人选。
- There are three candidates for the vacancy. 这一空缺有三名候选人。
- There is a vacancy on the tenth floor. 第十层楼上有一个空房间。
- The vacancy has already been filled. 那空缺已有人补上了。
- We have a vacancy for a computer programmer. 我们有一个电脑程式设计师缺额。
- Do you accept foreign exchange certificate? 你们接受外汇券兑换券吗？
- Trading on the Stock Exchange was light today. 证券交易所今日交投平平。
- A soldier was wounded in the exchange. 一名士兵在交火中受伤。
- He gave me an apple in exchange of an orange. 他给我一个苹果，交换一个橙子。
- Each telephone served by a private branch exchange. 由专用小交换机提供服务的电话分机。
- By just exchange one for another giver. 就这样以心相许相与。
- The London Stock Exchange is in turmoil today. 今天伦敦证券市场一片混乱。
- Keep this exchange memo for reconversion into foreign currency. 保存好这张兑换水单以便兑换回外币。
- This will help to fill a vacancy in our knowledge. 这有助于弥补我们知识上的空白。
- This solute will be referred to as a tracer. 这种溶质称为示踪剂。
- Is five apples for five eggs a fair exchange? 用五个苹果换五个鸡蛋公平吗?
- The New York stock exchange crashed in1929. 纽约股票交易所于一九二九年大崩溃。
- They have a vacancy for a secretary. 他们有个秘书的空缺。
- I'd like to exchange some pounds for dollars. 我想把一些英镑兑换成美金。
