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恢复期: 27 phrases in 14 subjects |
Agriculture | 1 |
Aviation | 1 |
China | 2 |
Earth sciences | 1 |
Economy | 2 |
Electronics | 1 |
Engineering geology | 1 |
General | 3 |
Genetics | 1 |
Heavy equipment vehicles | 2 |
Hydroelectric power stations | 1 |
Nursing | 1 |
Sports | 6 |
Technology | 4 |