concertina

concertina
[ˌkɒnsəˈtiːnə]
noun
  1. a small musical instrument, typically polygonal in form, played by stretching and squeezing between the hands to work a central bellows which blows air over reeds, each note being sounded by a button
    六角形手风琴。 比较 accordion
    ■[as modifier]opening or closing in multiple folds
    多重折叠的
    concertina doors.
    折叠门。
(concertinas, concertinaed concertina'd, concertinaing )
  1. [with obj.]extend, compress, or collapse in folds like those of a concertina
    伸展(或压缩、折叠)成褶皱状
    [as adj. concertinaed]big rolls of concertinaed wire.
    大卷的折叠金属丝。
    a request that the negotiations be concertinaed into a week-long session.
    把谈判时间压缩到一周的要求。
语源
  1. mid 19th cent.: from concert + -ina
英语宝典
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