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曲四 : 44 phrases in 10 subjects |
| Automobiles | 3 |
| Business | 1 |
| Chess | 2 |
| General | 6 |
| Metallurgy | 3 |
| Plastics | 1 |
| Space | 1 |
| Technology | 20 |
| Telecommunications | 1 |
| Textile industry | 6 |
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