一潭死水

yītánsǐshuǐ ㄧ ㄊㄢˊ ㄙˇ ㄕㄨㄟˇ

    • a pool of stagnant water
    • stagnant or listless condition

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Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
a pool of dead water
Meaning
A situation or place that is stagnant and lifeless. Critical.

Sources