zuó
used in 琢磨[zuo2 mo5]
Taiwan pr. [zhuo2]
精雕细琢
jīng diāo xì zhuó
see 精雕細刻|精雕细刻[jing1 diao1 xi4 ke4]
琢磨
zhuó mó
to carve and polish (jade)
zuó mo
to ponder
雕琢
diāo zhuó
to sculpt
切磋琢磨
qiē cuō zhuó mó
lit. cutting and polishing (idiom)