英语词汇expansion bolt怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	expansion bolt
释义	expansion bolt noun a bolt that expands when inserted, no thread being required in the surrounding material 伸缩栓, 膨胀螺栓。
随便看	actomyosin act on act one's age actor actorly actor-manager Actors' Studio actress actressy act something out act the maggot actual actual bodily harm actualities actuality actualization actualize actually actuarial actuarially actuary actuate actuation actuator act up

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