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回 收率 : 68 phrases in 20 subjects |
Business | 8 |
Chemistry | 5 |
Economy | 4 |
Electronics | 4 |
Environment | 1 |
Food industry | 1 |
Food service and catering | 1 |
Foundry | 1 |
General | 20 |
Geology | 2 |
International Monetary Fund | 1 |
Investment | 1 |
Mechanics | 1 |
Metallurgy | 3 |
Mining | 3 |
Oil / petroleum | 3 |
Oil and gas | 1 |
Oil processing plants | 3 |
Oilfields | 1 |
Technology | 4 |