a gas mask

a gas mask 基本解释

防毒面具

a gas mask 用法和例句

1、Others carried banners showing a skull with a gas mask on.

还有人举着的横幅上画着戴有防毒面具的头骨。

2、In a gas mask designed to guard against a biological threat, a very fine particulate filter is useful.

预防生物威胁时, 优良的微粒过滤器对防毒面具非常有用。

重点词汇

mask n. 面具；假面具；用作掩饰的事物；护肤膜 vt. 掩饰；戴面具；用面具遮住，掩盖，掩饰 vi. 戴面具；隐瞒，掩饰