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子宫孕育

子宫孕育

子宫孕育

子宫孕育

1

Babies usually develop this coating while they are in the womb , but many premature babies do not .

婴儿通常会在子宫孕育期间生成这种表面活性物质，但许多早产儿未能生成这种物质。

2

Acura human mothers , mothers gave birth to the human uterus , and human milk feeding.

人类讴歌母亲，母亲用子宫孕育了人类，用乳汁哺育了人类。

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