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长期项目 : 16 phrases in 10 subjects |
| Aviation | 2 |
| Business | 3 |
| Economy | 2 |
| Electronics | 1 |
| Finances | 1 |
| Metallurgy | 1 |
| Programming | 1 |
| Space | 1 |
| Sports | 1 |
| Technology | 3 |
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