| 单词 | gonad |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔activin〕A polypeptide growth factor that is synthesized in the pituitary gland and the gonads and stimulates the secretion of follicle stimulating hormone.活化素，促进抑制素：一种多肽生长因子，在垂体和性腺中合成并刺激促卵泡激素的分泌美国传统〔castrate〕An individual who is incapable of reproduction as a result of removal, destruction, or inactivation of the gonads.无生殖能力的人或动物：由于生殖器的去除、毁坏或无活动能力而丧失生殖能力的个体美国传统〔dysgenesis〕Defective or abnormal development of an organ, especially of the gonads.畸形：器官不良或发育不正常，尤指生殖腺的美国传统〔reproductive system〕The bodily system of gonads, associated ducts, and external genitals concerned with sexual reproduction.生殖系统：有关性繁殖的生殖腺、联合的输送管以及外部生殖器的身体系统美国传统〔sex gland〕A testis or an ovary; a gonad.性腺：睾丸或卵巢；生殖腺美国传统〔spermatogonium〕Any of the cells of the gonads in male organisms that are the progenitors of spermatocytes.精原细胞：雄性有机体的性腺的细胞，是产生精母细胞的母体美国传统 |
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