独 ㄉㄨ ˊ dú 树 ㄕㄨ ˋ shù 一 ㄧ yī 帜 ㄓ ˋ zhì 獨 ㄉㄨ ˊ dú 樹 ㄕㄨ ˋ shù 一 ㄧ yī 幟 ㄓ ˋ zhì lit. to fly one's banner on a solitary tree (idiom); fig. to act as a loner to stand out to develop one's own school to have attitude of one's own