For example, in the area of road traffic, regulations required persons in traffic with motorcycle must wear helmets. To this provision goes on to lifetime prevalence, holds for the people in the long term about the positive impact of the teams helmets, as well as spend time reminding do wear a helmet before applying sanctions.
đang được dịch, vui lòng đợi..
![](//viimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)