英語翻譯：

相關(guān)詞條：

例句：

1. 杰端：我以前是從不留胡子，我頭發(fā)是在頭盔里。
   Jerry: I never had a beard. I kept my hair inside the helmet.
2. 摩托車手必須戴頭盔保護自己免受傷害。
   Motorcyclists must wear helmets to shield them from injury.
3. 這些警察戴著頭盔保護自己。
   These policemen wear helmets to protect them.
4. 礦燈固定在礦工的頭盔上。
   A miner's lamp is fixed onto his helmet.