helmet是可數名詞
英 [ ˈhelmɪt ]
美 [ ˈhelmɪt ]
頭盔,安全帽常用釋義
釋義
n.
頭盔,安全帽(尤指脣形科和蘭科花朵的)花冠盔瓣,脣瓣冠螺
【名】 (Helmet)(德)黑爾梅特(人名)
變形
複數helmets 第三人稱單數helmets 現在分詞helmeting 過去式helmeted 過去分詞helmeted  
例句
1、 He locked his helmet into position with a click.
他喀噠一聲把頭盔扣好。
2、 A man in a crash helmet was mounting a motorcycle.
一個戴着防撞頭盔的男子正騎上一輛摩托車。
3、 He waved back, put down the kickstand, and took off his helmet.
他向後揮揮手,放下撐腳架,並脱掉他的頭盔。