以下为句子列表：
英文: A small cup-shaped structure or organ, such as the cup at the base of an acorn or one of the suckers on the feet of certain flies.
中文: 杯形器具一种小型的杯状结构或器官，如橡树果实茎部的杯状物或位于某些苍蝇脚上的吸盘之一
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英文: It is a multicultural flask-shaped structure made up of a narrow neck and a swollen base (venter) that contains the female gamete.
中文: 颈卵器状似长颈烧瓶，由一条细长的颈部和膨大的腹部（内含雌性配子）组成。
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英文: NEW NEURONS DO NOT arise spontaneously in every part of the adult mammalian brain but appear so far to form only in fluid-filled cavities called ventricles in the forebrain and in a seahorse-shaped structure called the hippocampus that is buried deep in t
中文: 截至目前看来，并不是成年哺乳动物的所有脑部位都能自行生成新的神经细胞，似乎只有前脑充满液体的脑室，以及一个深埋脑部、状似海马而得名的脑构造才能制造。
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