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second bottom |
河岸地 : 20 phrases in 13 subjects |
Arabic language | 1 |
Architecture | 1 |
Bridge construction | 1 |
Desert science | 1 |
Earth sciences | 1 |
Electronics | 1 |
Forestry | 1 |
General | 1 |
Geography | 2 |
Hydroelectric power stations | 1 |
Hydrology | 1 |
Life sciences | 1 |
Technology | 7 |