Cell phone is very popular and used widely recent years. With cell phone, people can, any time, contact friends, talk to families and send blessing SMS to the beloved person. However, except enjoying so many convineiences, cell phone also has some negative effects on us. Radiation generated by cell phone is harmful to healthy; Specially, ring bells may disturb others. For example, if you are sleeping at noon break in the office, a sudden ring call may shock you from a dream; when all the students are listening to the teacher, a loud ring bell will interrupt the class and make others annoyed; or during a meeting, a call noices is really impolite to other attendants. So, people should know where and how to use cell phone properly, and just turn off your phone if it maybe disturbs others.

　　手機很受歡迎,近年來得到廣泛應用。任何時候,有了手機,人們可以聯系朋友,跟家人和心愛的人發送祝福短信。然而,除了享受很多convineiences,手機對我們也有一些負面影響。手機產生的輻射對健康有害;特別是,搖響鈴鐺可能打擾別人。舉個例子,如果你是睡在辦公室午休,突然環調用可能會沖擊你的夢,所有的學生都聽老師的時候,一聲環鈴會中斷類和讓別人生氣;或在開會,電話響其他服務員是不禮貌的。所以,人們應該知道在哪里及如何正確使用手機,就關掉你的手機如果它可能擾亂他人。