HSK 7–9 grammar · adverb
难怪
难怪 — no wonder
Pattern
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( ) can be left out · other words may come before, between and after
How it works
难怪 works like 怪不得: on learning the cause, the speaker declares the result unsurprising. 难怪 is slightly more common in writing; the two are otherwise interchangeable.
Examples
他是南方人，难怪爱吃米饭。
Tā shì nánfāng rén, nánguài ài chī mǐfàn.
He's a southerner — no wonder he likes rice.
难怪找不到，你拿错钥匙了。
Nánguài zhǎo bu dào, nǐ ná cuò yàoshi le.
No wonder you can't open it — you took the wrong key.
Related
See it in a story
In the app, 难怪 is underlined wherever it appears in the stories you read, and practised with sentences from them. Free.