text[编辑信息]

　　-eg: From phoning to texting with touches of finger tips on the screen, cellphone is changing our life.;

　　keep track of[记录/了解]

　　-eg: keep track of time;

　　selective[选择的]

　　-eg: be selective in sth;

　　get hold of[找到/联系]

　　-eg: get hold of sb/sth