绿色，与红色相反，意味着安全性；它是道路交通中自由通行的颜色。

Green, as opposed to red, means safety; it is the color of free passage in road traffic.

youdao

绿色，与红色相反，意味着安全性；它是道路交通中自由通行的颜色。

Green, as opposed to red, means safety; it is the color of free passage in road traffic.

youdao