zinc

锌

Zinc is often used to coat steel and prevent rust.

锌常用来镀在钢材上以防止生锈。

锌、锌补充剂

The doctor suggested taking zinc to strengthen my immune system.

医生建议我补充锌来增强免疫力。

镀锌

The bolts are zinced to keep them from corroding outdoors.

这些螺栓经过镀锌处理，以免在户外腐蚀。