Correct

看不出

/ kān bù chū / 
Strokes

Definition

can't see/can't make out/unable to tell

Example

As a Verb

be unable to perceive; fail to perceive

1
Zhēn
真
kàn
看
bù
不
chū
出
  
,
tā
他
hái
还
néng
能
xiě
写
yīshǒu
一手
hǎo
好
zì
字
  
。

I never expected that he could write such a beautiful hand.

2
Kàn
看
bù
不
chū
出
zhēnjiǎ
真假

cannot tell whether it is genuine or fake