达 ㄉㄚ ˊ dá 斡 ㄨㄛ ˋ wò 尔 ㄦ ˇ ěr 達 ㄉㄚ ˊ dá 斡 ㄨㄛ ˋ wò 爾 ㄦ ˇ ěr Daur ethnic group of Inner Mongolia and Heilongjiang