Correct
用劲
/ yòng jìn /
Strokes
Example
As a Verb
exert oneself physically; put forth one's strength
1
Tā
他
méiyòng
没用
duōshǎo
多少
jìn
劲
jiù
就
jǔqǐ
举起
le
了
nā
那
kuài
块
shítou
石头
。
He lifted the stone without exerting himself./He lifted the stone effortlessly.
2
Yòngjìn
用劲
xīyān
吸烟
suck deeply on/at a cigarette