Correct

练功

/ liàngōng / 
Strokes

Definition

to practice work skill

Example

As a Verb

do exercises in gymnastics, wushu , acrobatics, etc; practise kung fu; practise one's skill

1
Wǔdǎo
舞蹈
yǎnyuán
演员
bìxū
必须
jiānchí
坚持
liàngōng
练功
  
。

A dancer must consistently practise his skill.

2
Tā
他
liàn
练
guò
过
gōng
功
  
,
jǐ
几
ge
个
rén
人
yīqí
一齐
dòngshǒu
动手
dōu
都
zhìfú
制服
bù
不
le
了
tā
他
  
。

He once practised kung fu, and it took more than a few people to overpower him.