This is proof artificially pregnancy and natural reproduction is almost the same example.
这更是证明人工妊娠与自然生殖几乎是一样的实例。
Embryo implantation is one of the earliest events in reproduction of humans and mammals that determines whether pregnancy will develop successfully.
胚胎着床是人和哺乳动物生殖过程中妊娠建立的第一步，是决定妊娠成功与否的关键。
Embryo implantation is one of the earliest events in reproduction of humans and mammals that determines whether pregnancy will develop successfully.
胚胎着床是人和哺乳动物生殖过程中妊娠建立的第一步，是决定妊娠成功与否的关键。
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