蚍蜉撼大樹

Simplified: 蚍蜉撼大树

pífúhàndàshù ㄆㄧˊ ㄈㄨˊ ㄏㄢˋ ㄉㄚˋ ㄕㄨˋ

    • lit. an ant trying to shake a big tree (idiom)
    • fig. to overrate one's own strength

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