four-color
| problem
| four color | |
| adv. | 四色 |
| Problem | |
| comp., MS | 問題回報 |
| problem | |
| gen. | 麻烦 |
| archit. | 课题; 难题 |
| bridge. | 题目 |
| chess.term. | 棋式; 棋题 |
| commer. | 问题 |
| el. | 疑问 |
| market. | 次数优化问题 |
| |||
| 四色的; 四色版印刷的 | |||
| |||
| 四色 | |||
|
four-color : 32 phrases in 12 subjects |
| Advertising | 3 |
| Biology | 1 |
| Business | 1 |
| Cryptography | 1 |
| Dietology | 1 |
| Jewelry | 1 |
| Light industries | 2 |
| Physics | 1 |
| Polygraphy | 7 |
| Technology | 11 |
| Telecommunications | 1 |
| Textile industry | 2 |