Task: Translation
Input (Chinese): 事故发生的时间大约是格林威治时间20：55，当时正以接近100英里时速行驶的220/221次列车撞上了停在轨道上的这辆汽车。
Output (English): The accident took place at approximately 20:55 GMT when the Class 220/221 train, travelling at close to 100mph, hit the car which was on the tracks.