viết đoạn văn nói về biển báo giao thông"trường học phía trước". bằng tiếng anh"school ahead" -ý nghĩa -tác dụng -hướng dẫn

'School ahead' is a traffic signs to let you know children often pass by or gather near the roadway such as kindergartens, schools or clubs. If you meeting this sea, road users must travel slowly and cautiously to prevent the possibility of children appearing and moving unexpectedly on the road surface.