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周期运 动 : 61 phrases in 16 subjects |
Architecture | 1 |
Automobiles | 1 |
Aviation | 2 |
Bridge construction | 2 |
Business | 1 |
Economy | 1 |
Electric machinery | 1 |
Electronics | 1 |
General | 2 |
Heavy equipment vehicles | 2 |
International trade | 2 |
Rail transport | 1 |
Space | 3 |
Sports | 1 |
Technology | 39 |
Wind Energy | 1 |