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最高水位 | |||
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高级阶段 |
highest stage: 42 phrases in 13 subjects |
Automobiles | 1 |
Aviation | 1 |
Compressors | 1 |
Desert science | 3 |
Economy | 1 |
Electronics | 2 |
Energy industry | 1 |
Genetics | 1 |
Hydroelectric power stations | 1 |
Oil / petroleum | 1 |
Space | 3 |
Technology | 25 |
Telecommunications | 1 |