蜻蜓撼石柱

qīngtínghànshízhù ㄑㄧㄥ ㄊㄧㄥˊ ㄏㄢˋ ㄕˊ ㄓㄨˋ

    • lit. the dragon-fly shakes the stone tower (idiom) fig. to overestimate one's capabilities

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Sources