birth ratio
短語(yǔ)詞組
- birth order ratio 產(chǎn)序比率
- low birth weight ratio 低出生體重
- birth sex ratio 出生性別比例;出生性別比
- birth gender ratio problem 出生性別比問(wèn)題
- birth -death ratio 翻譯
- twin birth ratio 出生比
- release to birth ratio 釋放比 返回 birth ratio
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