吮 吮 shun3
to suck

strokes 7
radical
口
口
strokes after radical 4
吮吸 吮吸 shun3 xi1
to suck

舔吮 舔吮 tian3 shun3
to lick and suck

吸吮 吸吮 xi1 shun3
to suck on (sth); to suck in