闷闷不乐

mèn mèn bù lè

down in the dumps

Character by character

闷mèn
gloomy

不bù
not

乐lè
happy

他这几天一直闷闷不乐，不知道怎么了。

He’s been down for days, and I don’t know why.

Tone: neutral.

闷 is mèn (gloomy) here, not mēn (stuffy), and 乐 is lè.

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