句型一Doingsth,sbdidsth【例句】Linkingarmswithoneoftheinstructors,Ihelpedcarrytheyoungmanoutofthewater.我和其中一位教官挽着手，帮助把这个年轻人从水里抬了出来【例句】Lookingdown,Winterssawatwo-year-oldonthesidewalkgaspingforairandhismotherdesperatelybeggingforhelp.往下看，温特斯看到一个两岁的孩子在人行道上喘着粗气，他的母亲拼命地乞求帮助。句型二Sbdidsth,doingsth【例句】Dennisgotagrouptext,inform...
