环节

huan2 jie2

round segment; segment (of annelid worms); connection; link; sector; annular ring

环境

huan2 jing4

environment; circumstances; surroundings; CL:个[ge4]; ambient

环状

huan2 zhuang4

annular; toroidal; loop-shaped; ring-like

循环

xun2 huan2

to cycle; to circulate; circle; loop

环面

huan2 mian4

ring surface; annulus; torus (math.)