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master mode |
主 方式 : 23 phrases in 15 subjects |
Athletics | 1 |
Automobiles | 1 |
Business | 1 |
China | 2 |
Commerce | 4 |
Communications | 1 |
Economy | 3 |
Electronics | 1 |
General | 1 |
Information technology | 1 |
Rail transport | 1 |
Securities | 1 |
Space | 2 |
Technology | 2 |
Telecommunications | 1 |