英文介绍人的出生

When we were children, we always asked our parents-“Daddy where am I from?”–“Em, you were sent to our house by a fairy.”-“A fairy?”-“Yes, and I know you must be a naught baby at first glance.”-“Why ?”-“You know the baby who are disobedient will be spanked, and your ass is blue.”—“Mommy where am I from?”-“You were picked from a baby tree, a tree full of baby. We wanted another baby at first but when I touched the branch, you were falling from the tree by accident, so we had to bring you to home.” When we grow up we know that statement is not scientific, and I want to ask you where are we from.-“Oh, it was more than twenty years ago, who remembered.” Just a joke. Today let’s to see where are we from.
From fertilized egg to birth, this is our development process. There are about 300 million sperm . However, only a sperm may pass through many obstacles and to fertilize an egg. Look, this is a moment that the sperm trying to enter the egg.
When the fertilized formed, there is also a change in it’s genes. You know the “XY” represent male, and “XX” represent female.
And then the fertilized egg will pass through a narrow oviduct which is 15 centimeters long. Finally it will swim to the uterus, and the vegetative cells which around it just like a string of beautiful aura.
About 7 weeks the fetus can be a human embryo. About 12 weeks of pregnancy the external genital organs could be developed preliminary. We are the alien baby originally, aren’t we? Fetus usually moves about 4 months of pregnancy.The nutrients and oxygen that the fetus needs through the mother's blood circulation to the placenta, the umbilical cord connects mother and fetus. We are the most fortunate people, before we were born we had once won the prize, the prize is the ticket to the world! So we shouldn’t complain about life when we go through the difficulties.We must have confidence in ourselves and in life! Before we were born, we had overcome the hundreds of millions of people and finally we got lives! We are the best, aren’t we?。