重点讲解:
1.cordon off隔离;
The protest started in front of the city government in the main People's Square, home to a horse racing track during Shanghai's colonial heyday, before police moved in to cordon off the area.
游行从市政府门前的人民广场开始,其前身为殖民地时期的跑马场 。随后警察对该地区拉起了警戒线 。
2.ram撞击;
The thieves fled, ramming the policeman's car.
小偷们撞了警车,逃跑了 。