明明
míng míng
obviously
plainly; undoubtedly; definitely
bright (明) + bright (明) = obviously
Repeating 明 intensifies the meaning, like saying 'clearly clearly' to emphasize that something is unmistakably obvious. The doubling pattern creates emphasis in Chinese, turning basic brightness into undeniable clarity.
他明明在家，为什么不开门？
tā míng míng zài jiā, wèi shén me bù kāi mén?
He's obviously at home, so why won't he open the door?
这道题明明很简单，可是很多学生都做错了。
zhè dào tí míng míng hěn jiǎn dān, kě shì hěn duō xué shēng dōu zuò cuò le.
This problem is obviously very simple, but many students got it wrong.