人和其他大多数哺乳动物都是胎生的。

Man and most other mammals are viviparous.

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鲸是胎生的，幼鲸靠吃母鲸的奶长大。

The whale is viviparous, the baby to eat mother's milk to grow up.

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我们家的猫一胎生了四只小猫。

Our cat had a litter of four.

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介绍辐射预硫化在子午线轮胎生产中的应用。

The application of radiation prevulcanization in radial tire production was introduced.

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研究了国产天然橡胶在航空轮胎生产领域的应用。

The application of home NR to aero tire was researched.

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这对于女性怀胎生育是不可忽视的。

The pregnant women for fertility should not be neglected.

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胚胎生长到达了一个重要的里程碑。

She has reached an important milestone.

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胎生“或许比我们想象的更加普遍。”

Live birth "might be preserved more commonly than we thought."

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胎生“或许比我们想象的更加普遍。”

Live birth "might be preserved more commonly than we thought."

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