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21. | progeny infection |
| 后代感染 |
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22. | Propagation of plants and animals;procreation. |
| 繁殖动植物的繁殖;生殖 |
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23. | The offspring of genetically dissimilar parents or stock, especially the offspring produced by breeding plants or animals of different varieties, species, or races. |
| 杂种基因相异的父母或牲畜所繁衍的后代,尤指不同种类、种群或种族的植物或动物所繁殖的后代 |
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24. | impaternate offspring |
| 无父后代 |
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25. | The sterile hybrid offspring of a male donkey and a female horse, characterized by long ears and a short mane. |
| 骡公驴和母马杂交的无繁殖能力的后代,特征是鬃毛短、耳朵长 |
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26. | produce offspring. |
| 繁衍后代 |
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27. | To be paired for reproducing;breed. |
| 为了繁殖而配对的;繁殖 |
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28. | segregation of posterity |
| 后代分离 |
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29. | vegetative progeny |
| 无性后代 |
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30. | female descendant |
| 雌性后代 |
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