helmet

n.头盔

heist, Hejira, held, helical, helicopter, heliotrope, heliport, helium, helix, hell, hell-bent, hell-cat, Hellene, Hellenic, Hellenistic, hellish, hellishly, hello, helluva, helm, helmeted, helmsman, help, help forward, help oneself, help sb. do sth, help sb. out, help sb. with sth., helper, helpful, helpfully, helpfulness, helping, helpless, helplessly, helplessness, helpmate, helter-skelter, helve, hem,