plectrum
英
['plektrəm]
美
['plektrəm]
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Noun:
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a small thin device (of metal or plastic or ivory) used to pluck a stringed instrument
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用作名词 (n.)
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Most ants have a natural plectrum built into their abdomens that they can rub to make sound.
大多数蚂蚁的腹部生有一块天然的“琴拨”,它们依靠互相摩擦来发声交流。
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