firearmn.
英 'faɪərɑːm | 美 'faɪr'ɑrm
中文n. 火器；枪炮
词根词源
firearm (n.)also fire-arm, 1640s, from fire (n.) + arm (n.2). Anything which expels a missile by combustion of gunpowder (or a similar substance), from a pistol to a cannon. Related: Firearms.
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