1. 彩色粉笔的解释
1. Conte Crayon:4 Chrome 铬黄 | 5 Conte Crayon 彩色粉笔 | 6 Graphic Pen 绘图笔
2. coloured chalk:Chalk 粉笔 | Coloured chalk 彩色粉笔 | Writing brush 毛笔
3. pastel chalk:pastel book 彩色画簿 | pastel chalk 彩色粉笔 | pastel colour silk socks 素色丝短袜
4. color chalk:summation 和式 | color chalk 彩色粉笔 | cononical vector 典型向量