After 37 years of age, a child ready to Iliescu, Romania, but was not allowed to in vitro fertilization.
37岁后，伊利埃斯库准备要一个孩子，不过当时罗马尼亚不允许试管受精。The stem cells had been removed when the embryo was a few days old and were stored in tanks of liquid nitrogen.
在受精卵只有几天大的时候，他们提出去这些干细胞，并将其储存在液氮容积中。In the course of a man's life, most of his sperm cells are ejaculated under conditions that offer no chance for a fertilization.
男性一生中，绝大多数的精子在无受精机会的情形下被射出。Infertility is often caused by the failure of sperm and eggs to meet in the natural way.
不孕不育通常是由于精子和卵子不能够正常受精引起的。If the endometrium polyp is not prompt excises, easy to block the oviduct aperture, the disturbance fertilized egg bed and the growth.
子宫内膜息肉如果不及时切除，容易阻塞输卵管开口，干扰受精卵着床和发育。IVF is a method of assisted reproduction in which a man's sperm and a woman's eggs are combined outside of the body in a laboratory dish.
体外受精是辅助生殖的一种方法，在体外的实验器皿里让男性精子和女性卵子结合。Even if he did fertilise the egg of a non-paired female it would not survive as it takes two adults to raise a single chick.
即使雄鸟让单身的雌鸟产下了受精卵，但如果没有两只成年鸟的照顾雏鸟将无法生存。For couples who have trouble conceiving, in vitro fertilization (IVF) is often the last resort.
对于受孕困难的夫妇，体外受精（试管婴儿）经常是最后的希望。if our lives were considered to begin at the moment of the impregnation, we might have to expose our parents' privacy.
如果把我们生命开始的时间定于受精那一刻，我们就不得不暴露父母的隐私。