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| 长期趋势 | |||
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long trend : 22 phrases in 12 subjects |
| Business | 1 |
| Desert science | 1 |
| Economy | 5 |
| Environment | 1 |
| Finances | 4 |
| International Monetary Fund | 1 |
| International trade | 1 |
| Mathematics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Technology | 4 |
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