1) Prohibition sign is a graphic sign used to prohibit people from unsafe behaviors. The basic form is a red circle border with slashes. The figure is black and the background is white.

2）警告標志是用來提醒人們對周圍環境引起注意，以避免發生危險的圖形標志。基本形式是黑色正三角形邊框，圖形是黑色，背景為黃色。

2) Warning signs are graphic signs used to remind people to pay attention to the surrounding environment to avoid danger. The basic form is a black equilateral triangle border, the figure is black, and the background is yellow.

3）指令標志是用來強制人們需要做出某種動作或必需要取一定防范措施的圖形標志基本形式是黑色圓形邊框，圖形是白色，背景為藍色。

3) The instruction sign is a graphic sign used to force people to make certain actions or take certain preventive measures. The basic form is a black circular border, the graphic is white, and the background is blue.

4）提示標志是用來向人們提供目標所有位置與方向信息的圖形標志。基本形式是矩形邊框，圖形文字是白色，背景是所提供的標志，為綠色。消防設備提示標志用紅色。

4) Prompt sign is a graphic sign used to provide people with all position and direction information of the target. The basic form is rectangular border, the graphic text is white, and the background is the provided logo, which is green. Warning signs for fire-fighting equipment shall be in red.

語言是人類傳遞思想感情的工具，警示牌是完善與衡量城市建設發展成熟的標準之一，保證人們的，為城市文明建設起到了積極的宣傳效果。

Language is a tool for human beings to convey their thoughts and feelings. Warning signs are one of the standards for improving and measuring the maturity of urban construction, ensuring people's safety and playing a positive publicity effect for the construction of urban civilization.