这些交通安全知识，可能有些人知道，有些人不知道。
The traffic safety knowledge, may be some people know, some people don't know.
对交通安全知识的掌握、交通规则的遵守存在不尽人意的地方。
Their awareness of road safety is general, and it is less than satisfactory in their grasping of road safety and complying with traffic rules.
目的了解重庆市小学生道路交通安全知识及行为状况，为有针对性地开展小学生道路交通安全教育提供依据。
Objective to study the pupils knowledge and behaviors of road traffic safety in Chongqing, and to provide guidance for the education on traffic safety.
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