蚍蜉撼大树 pífúhàndàshù to overrate one's own strength Origin Definitions Defs Strokes Stroke Words Sentences Sents 蚍蜉 pífú large ant (literary) a type of large ant撼 hàn nounverb to shake (bound form) to shake; to vibrate; to move something大树 大樹 dàshù noun big tree large tree