metallic zinc的用法和樣例：
例句
- Brass is an alloy composed of two metals, zinc and copper.
黃銅是由兩種金屬鋅和銅所組成的合金。 - These coins do not contain zinc, which refutes some views about the existence of zinc in Xinmang coins.
這些錢(qián)幣中不含金屬鋅，否定了長(cháng)期以來(lái)關(guān)于莽錢(qián)中含鋅的說(shuō)法。
