[经] grounds for challenge of an arbitrator
yāo qiú zhòng cái yuán huí bì de lǐ yóu ㄧㄠ ㄑㄧㄡˊ ㄓㄨㄥˋ ㄘㄞˊ ㄩㄢˊ ㄏㄨㄟˊ ㄅㄧˋ ㄉㄜ˙ ㄌㄧˇ ㄧㄡˊ