男性每次射精的精液含多达三亿个精子。

Each male ejaculation will contain up to 300 million sperm.

《柯林斯英汉双解大词典》

如果使用解冻的精液，它必须通过母羊的腹壁直接注入子宫。

If thawed semen is used, it has to be injected directly into the uterus through the ewe's belly wall.

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如果使用解冻的精液，它必须通过母羊的腹壁直接注入子宫。

If thawed semen is used, it has to be injected directly into the uterus through the ewe's belly wall.

youdao