手機用英文怎么表達？?英文

　　他忘了帶手機充電器。

　　He forgot the charger for his mobile phone.

　　大多數飛機上不許使用手機。

　　The use of cellular phones is not permitted on most aircraft.

　　很多人不斷將手機升級到最高檔的款式。

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

　　請確保演出時關上所有手機。

　　Please make sure all mobile phones are switched off during the performance.

　　我沒有帶手機。

　　I hadn't got my phone with me.