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加 铅 : 98 phrases in 12 subjects |
Automobiles | 11 |
Aviation | 2 |
Business | 2 |
Ceramics | 1 |
Chemistry | 9 |
Ecology | 1 |
General | 7 |
Metallurgy | 25 |
Oil / petroleum | 18 |
Oil processing plants | 3 |
Sports | 1 |
Technology | 18 |