又写了一句，请大家纠错。
According to 'A' field retrieve 'XXXX' table, if according to 'A1' field get 'XXX1' file records, and the value of 'B1' field of records are 'Y' and the value of 'B2' field of records are 'E', then deleted to it, else kept.
According to 'A' field retrieve 'XXXX' table, if according to 'A1' field get 'XXX1' file records, and the value of 'B1' field of records are 'Y' and the value of 'B2' field of records are 'E', then deleted to it, else kept.
