Nh? v?y ?? có th? nh?n ???c khuy?n mãi h?p l? thì ng??i ch?i c?n ph?i tham gia vào trong khung th?i gian di?n ra ?u ?ãi này ?? có th? nh?n th??ng. Davis has become deaf in the two ears, but he experienced a cochlear implant positioned in his correc