mask

The surgeon put on a sterile surgical mask before entering the operating room.

(Chinese) 外科医生在进入手术室前戴上了无菌外科口罩。

During the Venice Carnival, many people wear elaborate gold masks to hide their faces.

(Chinese) 在威尼斯狂欢节期间，许多人戴着精致的金面具以隐藏面容。

She smiled brightly to mask her disappointment when she didn't win the grand prize.

(Chinese) 当她没能赢得大奖时，她灿烂地微笑着以掩饰自己的失望。

The strong scent of pine needles was used to mask the smell of smoke in the cabin.

(Chinese) 松针的浓郁香气被用来掩盖小木屋里的烟味。