忍氣吞聲

Simplified: 忍气吞声

rěnqìtūnshēng ㄖㄣˇ ㄑㄧˋ ㄊㄨㄣ ㄕㄥ

    • to submit to humiliation (idiom) to suffer in silence
    • to swallow one's anger
    • to grin and bear it

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Sources