舉足輕重

Simplified: 举足轻重

On the HSK 7-9 vocabulary list, at CEFR level C1.

jǔzúqīngzhòng ㄐㄩˇ ㄗㄨˊ ㄑㄧㄥ ㄓㄨㄥˋ

    • to play a critical role (idiom)
    • influential

Character by character

Sources