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| 优生学 | |||
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| 种族改良 | |||
| 优生学 (eugenica) | |||
| 人种改良学 | |||
| 优生学 | |||
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Eugenics : 17 phrases in 5 subjects |
| Agriculture | 7 |
| Genetics | 7 |
| Nursing | 1 |
| Reproductive biology | 1 |
| Space | 1 |
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