Correct

怨不得

/ yuànbude /
Strokes

Definition

cannot blame/no wonder

Example

As a Verb

cannot blame

1
Zhè
shì
yuànbude
怨不得
rènrén
任何人
  

Nobody is to blame for it.

As an Adverb

no wonder; so that's why

2
Zuówǎn
昨晚
le
me
那么
duō
jiǔ
  
,
yuànbude
怨不得
tóuténg
头疼
  

No wonder you've got a headache—you drank too much last night.