求翻译：目击者郑先生介绍，事故发生在昨晚6点左右，当时这辆白色的普桑驾校教练车自西向东在江宁诚信大道上行驶，当行驶至临江中学附近路段时，车辆不知为何突然失去控制，撞上路边的路牙，最终翻车。据了解，教练是个20多岁的小伙，他从驾驶室里爬了出来，3名女学员随后也敲碎车窗玻璃爬出。对于事故发生的原因，开车的教练表示，当时他是为了避让前面一辆飞快驶来的摩托车急转方向，车子右后轮爆掉了才发生翻车。是什么意思？

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Eyewitnesses described Mr. Cheng, the accident occurred at about 6 p.m. last night, at the time this white Poussin driving schools coach car from west to east Avenue in Jiangning integrity, when traveling on roads near schools when traveling to 27-1vehicles, I do not know why suddenly lost control a

Eyewitness Mr. Zheng introduced that, the accident occurred about last night 6 o'clock, at that time this white Poussin harnessed the school driver training car from west to east to go on the Jiangning good faith main road, when went to Linjiang Middle school nearby the road section, the vehicles di

Eyewitness he describes, at around 6 o'clock last evening of the accident, when this white Poussan driving school coach car travelling from West to East in Jiangning integrity road, when when traveling to a section near the Riverside middle school, vehicles do not know why suddenly lost control and