helix

n (pl helices / 5hi:lIsi:z; `hZlI9siz/) spiral, either like a corkscrew or flat like a watch-spring 螺旋: Some biological molecules have the form of a helix. 有些生物分子呈螺旋状.

heifer, heigh-ho, height, heighten, heinous, heinously, heinousness, heir, heir apparent, heir presumptive, heiress, heirloom, heist, Hejira, held, helical, helicopter, heliotrope, heliport, helium, hell, hell-bent, hell-cat, Hellene, Hellenic, Hellenistic, hellish, hellishly, hello, helluva, helm, helmet, helmeted, helmsman, help, help forward, help oneself, help sb. do sth, help sb. out, help sb. with sth.,