1、 Of the common berries, strawberries are highest in vitamin C, although, because of their seeds, raspberries contain a little more protein, iron and zinc (not that fruits have much protein).
在常见的浆果中,草莓的维生素C含量最高,尽管由于树莓的种子,它含有更多的蛋白质、铁和锌(并不是说水果有很多蛋白质)。
来源:2018年普通高等学校英语(新课标I卷)
2、 Brass is an alloy of copper and zinc.
黄铜是铜锌合金。
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