英文字典中文字典51ZiDian.com
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gd GD n 1: a nerve agent easily absorbed into the body; a lethal cholinesterase inhibitor that is highly toxic when inhaled [synonym: {soman}, {GD}] 2: a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group [synonym: {gadolinium}, {Gd}, {atomic number 64}]
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