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1. Wearing a seat belt saves lives; it reduces your chance of death or serious injury by more than half. 2. But it will be the drivers responsibility to make sure that children under 14 do not ride in the front unless they are wearing a seat belt of some kind. 3. However， you do not have to wear a seat belt if you are reversing your vehicle; or you are making a local delivery or collection using a special vehicle; or if you have a valid medical certificate which excuses you from wearing it. 4. Remember you may be taken to court for not doing so， and you may be fined if you cannot prove to the court that you have been excused from wearing it. 5. Professor Taiju Matsuzawa wanted to find out why otherwise healthy farmers in northern Japan appeared to be losing their ability to think and reason at a relatively early age， and how the process of ageing could he slowed down. 参考答案： 1、系好安全带能够挽救性命，它能将丧生和重伤的概率减少一半以上。 2、但是司机有责任确保14岁以下的孩子不要坐在前排，除非他们系好了安全带。 3、当然，如果有以下情况你可以不系安全带：你在倒车时，或者你用一种特殊交通工具进行当地的货物运送、收集时，或者你有合法的医学证明你不能系安全带时。 | 
