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开拓 的 : 19 phrases in 9 subjects |
| Advertising | 1 |
| Agriculture | 1 |
| Business | 1 |
| Economy | 3 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 3 |
| General | 5 |
| Technology | 3 |
| United Nations | 1 |
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