How can I call the police from here? 我怎么在这里打电话给警察? We have to call the police. 我们必须打电话给警察。 Call the police right away. 马上打电话给警察。 I had a collision. 我撞车了。 Could you send someone? 你能派人来吗? There's an injured person here! 这里有一个人受伤! Which would be faster,a taxi or an ambulance? 出租车或救护车哪一种比较快? My friend was in traffic accident. He's seriously injured. 我朋友发生车祸,他受伤较重。