1. A method for a communication device comprising a microphone, a speaker, an input device, a display, and an antenna, said method comprising: a function implementing step in which one or more specific functions are implemented; wherein said communication device implements a voice communicating function and a multiple language function; wherein a voice communication is implemented by utilizing said microphone and said speaker when said voice communicating function is implemented in said step; and wherein a 1st language data and a 2nd language data are pre-stored in said communication device, wherein said 1st language data indicates a 1st language and said 2nd language data indicates a 2nd language, wherein said communication device functions under a 1st language mode or a 2nd language mode when said multiple language function is implemented in said step, wherein said multiple language function is the functionality enabling the user to manipulate said communication device with the user's preferred language by displaying the user interface with the language selected by the user, wherein when said 1st language mode is selected by the user, a first command which is the command for the user to manipulate said communication device in a first manner and a second command which is the command for the user to manipulate said communication device in a second manner are displayed by utilizing said 1st language data, wherein when said 2nd language mode is selected by the user, said first command which is the command for the user to manipulate said communication device in said first manner and said second command which is the command for the user to manipulate said communication device in said second manner are displayed by utilizing said 2nd language data, and wherein when said communication device is powered on after being powered off, said first command and said second command after said communication device is powered on are automatically displayed with said 1st language if said 1st language mode was selected by the user before said communication device was powered off, and said first command and said second command after said communication device is powered on are automatically displayed with said 2nd language if said 2nd language mode was selected by the user before said communication device was powered off.