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a type of hard hat that protects the head, worn, for example, by a police officer, a soldier or a person riding a bike or motorbike or playing some sports 頭盔;防護帽 Police in riot helmets lined the streets. 戴着防暴頭盔的警察站在沿街兩邊。 A protective helmet should be worn at all times. 随時都應該頭戴防護帽。 Cycle helmets dramatically reduce the risk and severity of head injuries. 自行車頭盔大大降低了頭部受傷的風險和嚴重程度。
Oxford Collocations Dictionaryadjective- leather
- metal
- plastic
- …
- have on
- wear
- don
- …
- visor
Word Originlate Middle English: from Old French, diminutive of helme, of Germanic origin.