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  1. Oxford Dictionary

    bell jar

    英式

    • n.
      a bell-shaped glass cover used in a laboratory, typically for enclosing samples.；an environment in which someone is protected or cut off from the outside world

    • noun: bell jar, plural noun: bell jars

    • 釋義

    名詞

    • 1. a bell-shaped glass cover used in a laboratory, typically for enclosing samples.
    • ▪ an environment in which someone is protected or cut off from the outside world let him stay in his bell jar of perfectionist concentration