In the struggle, Quan Cong led armoured troopers to patrol the riverbank around the clock, and repel Recurrent raids by smaller teams of Wei marines.Chi phí ban ??u cao: Vi?c t? ??ng hóa c?a m?t m?i s?n ph?m ho?c th?c v?t th??ng ?òi h?i m?t s? ??u t? ban ??u r?t l?n so v?i chi phí ??n v? s?n ph?m, m?c dù chi phí t? ??ng hóa có th? ???c lan