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- Nowadays, the most recent researches are based on the surface protein of oocyte, mammalian zona pellucida (ZP)，that coveraged a mammalian oocyte and the preimplantation zygote. 以精子表面抗原制备的疫苗能够诱导产生精子抗体和不育效果，目前已成为避孕研究的一个热点。
- A whale is no less a mammal than a horse is. 鲸鱼和马一样都是哺乳动物。
- The whale is the largest mammal in creation. 鲸是世上最大的哺乳类动物。
- mammal oocyte 哺乳动物
- The mammalian oocytes are important materials for study of meiotic cell cycle in developmental biology and cell biology. 摘要哺乳动物卵母细胞是发育生物学和细胞生物学的重要研究对象。
- Whale is not a fish; it is a mammal. 鲸不是鱼类，它是一种哺乳动物。
- To draw milk from a female mammal. 挤奶从雌性哺乳动物身上挤奶
- The oocyte is effectively a tetraploid cell. 卵母细胞是有效的四信体细胞。
- The bat is the only mammal that can fly. 蝙蝠是唯一会飞的哺乳动物。
- Oocyte resumed the second meiotic division. 后期将染色体拉向两极；
- As a result the oocyte could not be fertlizated. 乙醇还能够破坏精子的结构完整性,降低精子的运动能力。
- Dolly was not only the largest mammal ever cloned. 多利不仅是克隆过的最大型的哺乳动物，
- A coating similar to the pelt of a mammal. 皮子象哺乳动物毛皮的覆盖层
- Eg. The elephant is the largest land mammal. 大象是最大的、陆地上的哺乳动物。
- A whale is no less a mammal than a horse. 鲸鱼与马一样,都是哺乳动物。
- The elephant is the only mammal that can't jump! 大象是唯一一种不会跳。
- The whale is the largest mammal in all creation. 鲸是全世界最大的哺乳动物。
- The whale is not a fish, but a mammal. 鲸不是鱼,而是哺乳动物。
- A hoofed mammal of the order Perissodactyla. 奇蹄目的带蹄哺乳动物
- A mammal of the suborder Pinnipedia. 鳍脚亚目哺乳动物
