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约 数 的 : 16 phrases in 10 subjects |
| Bridge card game | 1 |
| Business | 1 |
| Economy | 2 |
| General | 4 |
| Geophysics | 1 |
| Mathematics | 1 |
| Oil / petroleum | 1 |
| Securities | 1 |
| Technology | 3 |
| United Nations | 1 |
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