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翻 修 : 99 phrases in 16 subjects |
Architecture | 3 |
Automobiles | 3 |
Aviation | 42 |
Bridge construction | 1 |
Business | 1 |
Chemistry | 1 |
Economy | 2 |
Electronics | 1 |
General | 2 |
Genetics | 1 |
Life sciences | 1 |
Nautical | 5 |
Space | 12 |
Technology | 20 |
United Nations | 1 |
Wind Energy | 3 |