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基础种 : 20 phrases in 10 subjects |
| Agriculture | 4 |
| Animal husbandry | 4 |
| Cryptography | 1 |
| Economy | 1 |
| Electronics | 1 |
| General | 2 |
| International trade | 1 |
| Reproductive biology | 1 |
| Sports | 1 |
| Technology | 4 |
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