我有一部手机用英文怎么表达？

　　很多人不断将手机升级到最高档的款式。

　　Many people are upgrading their mobiles to top-end models.

　　他忘了带手机充电器。

　　He forgot the charger for his mobile phone.

　　我用手机跟她通了话。

　　I talked to her on my cellphone.

　　你的手机号码是多少？

　　What's your mobile number?

　　我的手机极为有用。

　　My mobile phone is extremely useful.