surgical mask的用法和样例：
例句
- Surgical masks are designed to prevent the wearer from spreading germs, but may also catch large respiratory droplets if someone sneezes nearby.
外科手术口罩被设计用来防止佩戴者传播细菌，但如果附近有人打喷嚏或许也会被喷上飞沫。 - Mr Yettaw was wearing a blue surgical mask and clutching a green Harrods bag as he was pushed in a wheelchair through Chicago's O'Hare International Airport after his arrival.
耶太华到达以后，戴着一个蓝色的消毒面罩手里紧握这个绿色的哈罗士包，坐在轮椅上被推出奥海尔国际机场。
