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| 对...挥: 20 phrases in 10 subjects |
| Air defense | 1 |
| Desert science | 1 |
| Electronics | 5 |
| Finances | 1 |
| General | 4 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Space | 3 |
| Sports | 1 |
| Technology | 1 |
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