service cap

例句：

1. 1.The engineer wore a service cap to protecthis hair from the wind.
   工程师戴着一顶服务帽，以防头发被风吹乱。
2. 2. The firefighters wore service caps to keep their hair out of theirfaces.
   消防员们戴着服务帽，以免头发遮住他们的脸。
3. 3. Thedoctor's service capwas adorned with a smallribbon for good luck.
   医生的服务帽上系着一条小丝带，寓意好运。