公路交通安全是一个波及社会各个部门全球性的重大社会问题。

Highway traffic safety is an important society problem as it relates to social each section.

youdao

公路交通安全是一个波及社会各个部门全球性的重大社会问题。

Highway traffic safety is an important society problem as it relates to social each section.

youdao