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set-day |
座/天 : 78 phrases in 16 subjects |
Air defense | 6 |
Architecture | 1 |
Automobiles | 2 |
Aviation | 5 |
Construction | 1 |
Electronics | 2 |
General | 23 |
Latin | 9 |
Military | 1 |
Oil / petroleum | 2 |
Rail transport | 1 |
Space | 8 |
Sports | 2 |
Technology | 13 |
Telecommunications | 1 |
United States | 1 |