舞言李萍
请看具体的例子:铜比其他材料导电性能好。Copper conducts electricity better than other materials.铜的导电性比铁强。Copper conducts electricity better than iron does.黄铜是铜和锌的合金。Brass is an alloy of copper and zinc.
S素年錦時
铜锈 . . aerugo 铜锈绿 : patina green铜管 . . copper pipe 铜矿 . . copper ore 铜像 bronze 你还需要什么??
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