khi ba vi gia nhap san choi lon moi thay phuc tap khi dung giua vnsv va vsv moi thong tin trai chieu lam ban than cung nhu clb khong biet dau ma lan minh chi nghi ban than gsd khong co loi ma loi o nguoi nuoi no cu nguoi nay noi sau nguoi kia ma tai sao khong ngoi lai voi nhau de cung nhau phat trien