以下为句子列表：
英文: The concept of an alternation of generations can be extended to the flowering plants, in which the embryo sac and pollen represent the much reduced famale and male gametophyte generations respectively.
中文: 这个概念也可以运用在有花植物上，由胚囊和花粉各自表达雌雄配子体世代。
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