东边: east, east side, eastern part, to the east of...
外援: foreign aid, external aid, (sports) foreign player, player recruited from overseas...
有用: useful...
后天: the day after tomorrow, life after birth (the period in which one develops through experiences, contrasted with ), acquired (not innate or congenital), a posteriori...
荣幸: honored (to have the privilege of...)...
对应: to correspond, a correspondence, corresponding, homologous, matching with sth, counterpart...