When an egg hatches or when a bird, insect, or other animal hatches an egg, the egg breaks open and a baby comes out. 孵化
例：
The eggs hatch after a week or ten days.
这些蛋1周或10天后孵化。
When an egg hatches or when a bird, insect, or other animal hatches an egg, the egg breaks open and a baby comes out. 孵化
例：
The eggs hatch after a week or ten days.
这些蛋1周或10天后孵化。