HSK 7-9
朦胧
ménglóng形
(literary) (of moonlight) dim; (literary) murky; indistinct
清晨远山笼罩在朦胧雾色中。
Qīngchén yuǎnshān lǒngzhào zài ménglóng wùsè zhōng.
The distant mountains were veiled in hazy morning mist.
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Appears across levels (7-9) in the HSK 3.0 word list.