sinking headgear

例句：

1. 1.The diver was wearing a sinking headgear to protect his eyes from the bright lights.
   潜水员戴着一个下沉的头盔，以防他的眼睛受到强光的刺激。
2. 2.During the storm, everyone wore a sinking headgear to stay safe.
   暴风雨来临时，每个人都戴上了下沉的头盔以确保安全。
3. 3. The firefighters were equipped with sinking headgear to prevent them from getting burned.
   消防员配备了下沉的头盔，以防止他们被烧伤。