helmet [ˈhɛlmɪt]

例句:

• His father approached Mr. Munser for a custom helmet.
  来自WSJ
• Building workers risk injury by not wearing helmets.
  建筑工人不戴安全帽便有受伤的危险。
  来自《权威词典》
• Protective helmets must be worn on site.
  在工地必须戴防护帽.
  
• A man in a crash helmet was mounting a motorbike.
  一位戴头盔的男子正跨上摩托车。
  
• He pulled on a battered old crash helmet with a scratched visor.
  他戴上了一顶破旧的防护头盔，上面的面罩已有划痕。
  
• Miners wore a helmet as a guard against falling rocks.
  矿工头戴钢盔,防护落下的岩石.
  
• A blue plastic safety helmet with a transparent visor.
  来自D. Lodge
• He was crowned by a helmet of French make.
  来自J. Cary