huáng / tóng / shì / tóng / hé / xīn / de / hé / jīn / ， / yīn / wéi / yìng / dù / gāo / cháng / bèi / yòng / lái / zuò / mén / bǎ / shǒu / 。

黄铜是铜和锌的合金，因为硬度高常被用来做门把手。

Brass is an alloy of copper and zinc, and is often used to make door handles because of its high hardness.