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elapsed time |
时间经过 : 42 phrases in 13 subjects |
Animal husbandry | 1 |
Automobiles | 1 |
Aviation | 9 |
Business | 1 |
Economy | 6 |
General | 7 |
Hydroelectric power stations | 1 |
Management | 1 |
Metallurgy | 2 |
Oil / petroleum | 1 |
Space | 4 |
Technology | 5 |
Telecommunications | 3 |