1, bamboo: showing integrity, although not strong, but tall and straight, tough and straight; Not afraid of cold and heat, it lasts forever.

2, lotus: mud does not touch, clear is not a demon.

3. Orchids: China people have always regarded orchids as a symbol of nobility and elegance, and they are also called "four gentlemen" with "plum, bamboo and chrysanthemum".

4. Argument: it is a symbol of courage and justice, and it is a symbol of "aboveboard", "fairness and justice" and "bright world" in justice.