单词	上代段
释义	上代段parent segment
随便看	copper base bearing metals copper based shape memory alloy copper-based telecommunications copper base friction plate copper-bath copper-bearing copper bearing s copper bearing steel copper-bearing steel copper beech copper belt copperbenzoate copper-beryllium alloy copper bichromate copper binding wire copper binding-wire copper biphosphite copper bismuth strontium alloy contact copper bit copper black copper blast furnace copper blazing copper blende copper--blende copper blight