Correct

够劲儿

/ gòu jìnr / 
Strokes

Example

As an Adjective

potent; strongly effective; really strong/powerful

1
Zhè
这
jiǔ
酒
zhēn
真
gòu
够
jìnr  
劲儿
  
。

The liquor is really strong/potent.

2
Bùgòu
不够
jìnr  
劲儿

not strong enough

As an Adjective

too much (to handle); enough (of a burden)

3
Jì
既
yào
要
gōngdú
攻读
xuéwèi
学位
yòu
又
yào
要
dài
带
liǎng
两
gè
个
háizi
孩子
  
,
zhēn
真
gòu
够
jìnr  
劲儿
  
。

It's enough of a burden to study for a degree and to take care of two kids at the same time.