concertina 核心词议：
n. 类似风琴的六角形的乐器
v. （像六角手风琴一样）折起，折叠
concertina 基本解释
速记方法知识扩展
concertina 变化形式
复数： concertinas
中文词源：
concertina
精选例句
1、 Are those bottom lines are you concessional without method?
那些底线是你们没有办法让步的？
常见考点例句：
- It might just be possible to concertina the three meetings into one morning .
- 把三个会议压缩在一个上午开许是可能的。
- But this concertina movement requires a lot of energy .
- 但这种伸缩运动需要大量能量。
- Something about choosing love over duty ? Oh , wait , let me get my concertina !
- 某首关于爱高于责任的歌？噢,等等,我去把我的手风琴拿来!
- He described how he and a dozen others were swept up in a raid by the us army and detained on a bare patch of ground surrounded by concertina wire .
- 他描述他如何与十几个人席卷的一次搜捕行动中，美国陆军和拘留的裸露地面修补所包围铁丝网。
- In truth , the expo by itself has changed little in shanghai , rather it has been an excuse to concertina a series of investments that were already on the books , squeezing a decade of plans into three or four years .
- 事实上，世博会本身并没有给上海带来什么变化，它只是成了一举落实大批投资的借口，十年计划压缩成了四年的计划。