[经] reporting exchange gains and losses

huì duì sǔn yì de bào gào ㄏㄨㄟˋ ㄉㄨㄟˋ ㄙㄨㄣˇ ㄧˋ ㄉㄜ˙ ㄅㄠˋ ㄍㄠˋ