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循环 物 : 25 phrases in 13 subjects |
Biology | 1 |
Business | 2 |
Construction | 1 |
Ecology | 1 |
Electronics | 1 |
Environment | 1 |
Food service and catering | 1 |
General | 10 |
Medical | 3 |
Nautical | 1 |
Oceanography & oceanology | 1 |
Oil processing plants | 1 |
Technology | 1 |