1·Brass is an alloy of copper and zinc.
黄铜是铜锌合金。
—— 《牛津词典》
2·Copper and zinc are fused to make brass.
铜与锌熔合后形成黄铜。
3·How did diatoms survive if zinc is so scarce?
如果锌如此缺乏，硅藻是如何生存的呢？
4·Raspberries contain a little more protein, iron and zinc.
树莓含有更多的蛋白质、铁和锌。
5·Say we determined a pigment was made with zinc, for example.
比如说，我们确定一种颜料由锌制成。