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心向量 : 28 phrases in 12 subjects |
| Agriculture | 2 |
| Automobiles | 1 |
| Aviation | 1 |
| Computers | 1 |
| Electronics | 4 |
| General | 7 |
| Medical | 1 |
| Nursing | 3 |
| Physiology | 1 |
| Space | 1 |
| Sports | 5 |
| Technology | 1 |
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