环带

clitellum (worm anatomy)

band / belt / girdle / ribbon / tire / area / zone / region / CL:條|条[tiao2] / to wear / to carry / to take along / to bear (i.e. to have) / to lead / to bring / to look after / to raise

surname Huan

ring / hoop / loop / (chain) link / classifier for scores in archery etc / to surround / to encircle / to hem in