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to phrases
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方向相反
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40 phrases
in 16 subjects
Air defense
1
Architecture
1
Automobiles
3
Basketball
1
Bridge construction
2
Electric machinery
1
Electronics
1
General
18
Gymnastics
1
Hydroelectric power stations
1
Mathematics
2
Oil / petroleum
2
Physics
1
Scuba diving
2
Space
2
Table tennis
1
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