我之前告诉过你在中国我们的产品属于非道路观光车它的要求和我们的汽车是有区别的比方说速度最高限定为30KMH是为了游览乘客的安全。关于发动机保养这个普通汽车是一样的。 把中文翻译成英文

As I have told you before, our product in China belongs to the category of off-road sightseeing vehicles, which has different requirements compared to regular cars. For example, the maximum speed is limited to 30KM/H for the safety of the passengers during the tour.

Regarding engine maintenance, it is the same as regular cars.