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| aircraft flight release | |||
| 飞机放飞: 24 phrases in 8 subjects |
| Architecture | 1 |
| Aviation | 16 |
| Ecology | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Space | 1 |
| Sports | 1 |
| Technology | 1 |
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