cai do la do ban moi vao nghe day thoi chu thuc ra la do cac chan pin bi ro ra khi ban kep dong thi no tien vao men con khi ban ban bo pin vao thi cac chan pin di bi day len the la khong len nguon ban hay cau lai pin+ vao tu gan nhat va pin - vao cho nao tren men sao cho dep mat la ok chu no chang anhhuong gi den ic hay tu tro gi dau ban ah ______________________ chuc ban thanh cong ______ho nguyen tuyen _nghe an