| 1. | Conception occurs when a sperm fertilizes the egg
当精子使卵子受精时便产生受孕。 |
| 2. | The male sperm fertilizes the female egg
雄性的精子使雌性的卵子受精 |
| 3. | Without the use of sperm cells
而使卵子受精 |
| 4. | Without the use of sperm cells
而使卵子受精 |
| 5. | A fertilized human egg in the first eight weeks is referred to as an embryo , afterwards it is called a fetus
胚胎人类的卵子受精后的首八周称为胚胎；之后便称为胎儿。 |
| 6. | The female seahorse inserts her eggs into the belly of the male seahorse , and he then inseminates the eggs inside his belly
雌性的海马将卵子输入雄海马的腹部，雄海马在腹部使卵子受精。 |
| 7. | Embryoloy : the study of growth and development of the embryo and fetus from fertilization of the ovum until birth
胚胎学：研究从卵子受精开始到胎儿出生这一时期胚胎及胎儿生长发育的科学。 |
| 8. | Before using the sperm to fertilize an egg , they could test it to make sure it was healthy and lacked the genetic defect
在用精子使卵子受精之前，他们先对精子进行检查，以确认它是健康且不存在基因缺陷的。 |
| 9. | The technique is effective in circumventing fallopian tube blockages in women as well as a wide range of male and female problems
该技术对于输卵管堵塞的患者非常有效，办法就是将卵子和精子放在一个培养皿中使卵子受精。 |
| 10. | According to the experiment , the protoplasm centralized to the creatural pole , and the oil globules distributed to the plant pole after the fertilization
根据结果表明，在上述孵化条件下，半滑舌鳎的卵子受精后，原生质向动物极集中，油球多分布于植物极。 |
