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精子与卵子结合开始受精过程。
The sperm fuses with the egg to begin the process of fertilization.
《牛津词典》
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她的卵子已经采集下来,冷冻后以备她将来使用。
She had her eggs harvested and frozen for her own future use.
《牛津词典》
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她的卵子已经采集下来,冷冻后以备她将来使用。
She had her eggs harvested and frozen for her own future use.
《牛津词典》