second-level
| problem
| second level abbr. | |
| busin. | 二级; 次水平 |
| second-level abbr. | |
| commer. | 第二层的 |
| Problem abbr. | |
| comp., MS | 問題回報 |
| problem abbr. | |
| 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 |
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| 二级; 次水平 | |||
| |||
| 第二层的 | |||
| 二级的 | |||
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second-level : 50 phrases in 20 subjects |