1. Appearance of red: Red is a bright, eye-catching and easily recognizable color. Red footprint refers to the red trace left on the ground or other objects. The particularity of this color makes the red footprint easier to be noticed visually and can quickly attract people's attention and attention.
2. Meaning: The red footprint represents a special mark or information, which has different meanings in different situations, such as warning, indicating the route, marking the dangerous area, etc. This means that when people see them, they can quickly understand the information behind them and respond accordingly.
When dealing with foreigners, you should know their business etiquette, so as to facilitate your's cooperation. The following are French busi