Phải thật cẩn thận hơn

nowadays,mobile phone are common in our daily lives.
Today's technology , a mobile phone is not only a convenient means of communication but also a great entertainmant store.you can listen to music,watching movies,playing games.....over mobile.
Besides,mobile phone use also causes much trouble.It would be impolite if we allow the phone to ring in the meeting rooms and classroom.It would not be much privacy if we are really talking in mobile in in public place.People also feel uncomfortable with that.there is a number of traffic accident caused by using mobile phones when driving.
Although,there some problems like is still a neccessary means for our lives today.the use mobile phones is good or not depen on the conscious use of each person.