sperm造句_sperm例句_sperm用法_V5词典

1. The researchers say that one day these cells could be turned into sperm and egg cells to bring the species back from the brink.: 研究人员认为，有一天这些细胞可以转变为精子和卵细胞，从而可以将这个物种从灭绝边缘解救出来。

2. Select the Selection Tool (black arrow) from the Toolbox and select the smaller circle and the other object that forms the shape of the sperm head.: 从工具箱中选择选取工具(黑色箭头) ，然后在图中选择那个相对较小的圆和另一个精子头形状的物体。

3. But the two teams of scientists, have found that some genes are left exposed in sperm, in an "open conformation", allowing them to play an important role in the development of the embryo.: 但是这两个小组的科学家发现有些基因在精子里面是以一种“开放构型”暴露的，从而让他们在胚胎发育过程中起到更加重要的作用。

4. Sperm and eggs must lose one copy each as they prepare for fertilisation.: 当他们准备受精时，精子和卵子必须各放出一个副本。

5. “They were my sperm and egg bank, ” he says.: “他们不过是我的精子库与卵子库，”他说道。

6. To even be considered, you and your sperm have to meet their criteria.: 为了进入捐赠者的行列，你和你的精子都得能符合他们的标准。

7. Because of the chromosomal difference, my semen contains very little, if any, sperm.: 因为我的染色体的变异，我的精液中仅含有很少的精子。

8. Men can produce sperm throughout their lives, which means they can father children at any age.: 男人一辈子都能产生精子，这意味着他们在任何年龄都能做父亲。

9. It takes only one sperm to fertilize the egg.: 然而只有一个精子会让卵细胞受精。

10. If you and your partner are planning a pregnancy, you may be wondering about the health of your sperm.: 如果你和你的伴侣正在计划造人，那么你可能很想知道你的精子的健康情况。

11. But fathers have no contact with their daughters except through the sperm that created them.: 但是父本与子代并未联系，除非通过精子造成影响。

12. To reach the egg, sperm have to move on their own — wriggling and swimming the last few inches to reach and penetrate the egg.: 要到达卵子那里，精子必须靠自己的移动方式——蠕动和游泳通过最后的几英寸，抵达并进入卵子。

13. Obviously, the female likes both kinds of attention, since she chooses to accept both males and fertilizes her eggs with both their sperm.: 很显然，雌性乌贼对两种关注都很享受，自从它选择接受两只雄性乌贼共同用它们的精子为它的卵受精开始。

14. This clock of age is reset by normal reproduction during the production of sperm and eggs; that is why children of each new generation have a full life span.: 年龄生物钟通过正常的生育在精子和卵子的产生过程中被重新设定，这就是为什么每一代新生儿都有完整的生命周期的原因。

15. But sperm is an amazing thing, with more secrets than most of us would have guessed.: 不过精子是一种叫人吃惊的东东，它的秘密比我们多数人猜想的还多。

16. Masturbation permanently reduces the quantity and quality of sperm.: 手淫会永久减弱精子的数量和质量。

17. Although the egg and sperm each supply half the DNA for the new baby, the egg provides all the cellular support systems, including enzymes and proteins.: 尽管精子和卵细胞都提供新生儿一半的DNA，卵细胞却提供了所有的细胞环境支持，包括酶系统和蛋白质等。

18. Germline cells are the only cells in the body that grow into sperm or eggs.: 生殖系细胞是生物体内唯一能发育成精子或卵子的细胞群。

19. Female sexuality is a lot more complex. It must not just receive the sperm, it must sort out which one it wants. Then it must invest a lot of time and resources to nurture those genes.: 女人的性欲则更为复杂，它不仅要接收精子，还必须分出哪个是它所想要的，然后它必须投入大量的时间和资源来滋养这些基因。

20. "[With] the males, even with one testis, the quality of that sperm was just abysmal, " she says.: “甚至有的雄美洲豹只有一个睾丸，而且它们的精子的质量糟糕透了，”她说。

21. One problem was that no one could identify sperm or eggs in eels.: 问题是，没有人能在鳗鱼体内确认出精子或卵子。

22. You have to wonder, what do sperm think.: 你不禁好奇，精子们会怎么想。

23. You have to wonder, what do sperm think.: 你不禁好奇，精子们会怎么想。

24. He allowed these "enucleated" eggs to be fertilized by sperm from sea urchins of the genus Echinus.: 他让这些“无核”的卵跟海胆属的海胆的精子受精。

25. The male sperm fertilizes the female egg.: 雄性的精子使雌性的卵子受精.

26. An egg cell removed from Mrs., Carr was fertilized in a laboratory dish with sperm from her husband.: 从卡尔夫人卵巢里抽出一个卵细胞和她丈夫的精子在实验器里受精。

27. The mixture of sperm and accessory fluids is called semen.: 精子和附加的液体的混合物称为精液。

28. The two sperm nuclei and the tube nucleus are all derived from a single microspore nucleus by mitosis.: 两个精核和管核都是从同一个小孢子核有丝分裂产生的。

29. He has a low sperm count, ie He has few sperm cells and so is not very fertile.: 他的精液中精子含量少.

30. The bulls producing donor sperm are screened first for disease and bloodlines.: 对用作提供精液的公牛，首先要调查它们的病史和血缘关系。

31. Jelly fish reproduce by releasing eggs and sperm into the sea.: 水母将卵和精液排入大海而繁殖。

32. Physeteridae; sperm whale: 抹香鲸科

33. an animal oil found in the blubber of the sperm whale.: 抹香鲸鲸脂中的一种动物油。

考试词汇

CET4 四级词汇 CET6 六级词汇 TEM4 英专四级 TEM8 英专八级考研词汇 GRE 词汇托福词汇雅思词汇

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