Your browser isn’t supported anymore. Update it to get the most effective YouTube expertise and our newest attributes. Learn more trong m?t kho?n th?i gian nh?t ??nh tr??c khi ?i?u ch?nh, t?t nh?t b?n nên dùng ph??ng pháp t? ??ng ho?c xây d?ng hàm ?? ki?m tra v?i d? li?u.It is possible to e-mail the location operator to allow them to know y