ovum例句

Once the ovum is released it has a lifespan of 12 to 36 hours.
卵子排出后可存活12至36小时。

By day 11 the ovum begins to attach and implant in the lining of the uterus.
到第11天卵子着床嵌入子宫内壁.

One way is taking the cell from a fertilized ovum.
一种方法是从受精卵中取出细胞.

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