蹒跚不前

pán shān bù qián

to falter

to stall

蹒

pán

used in 蹣跚|蹒跚[pan2 shan1]

跚

shān

used in 蹣跚|蹒跚[pan2 shan1]

不

bù

no; not so

前

qián

front