破壳而出 英语怎么说?

看看下面的例句吧:
1.几个星期后，一只小鸟破壳而出，它们欣喜万分。
And a few weeks later when a tiny chick hatched, their happiness seemed to know no bounds.

2. 在老人的悉心照料下，一个多月后，小雁破壳而出并茁壮成长。
Over a month later , the young wildgooses burst out from the eggshells and grew up health and strong .

3. 一天，老师带学生到养鸡场参观，当他们走近孵化器时，刚好一只小鸡破壳而出。
One day, a teacher took his pupils to a chicken farm to pay a visit. When they came near the incubator, chick just got out of its egg shell.

我知道hatch 是孵化的意思，它有vt.孵出 vi.孵化的意思。不知道能不能帮上忙

pip=break through (the shell) in hatching