egg是可数名词。egg的复数形式是eggs。
eggsn.(鸟类的)蛋；(鱼、昆虫等的)卵；(用作食物的)禽蛋
Immediately after fertilization, the cells of the egg divide.
卵受精后细胞立即开始分裂。
She had her eggs harvested and frozen for her own future use.
她的卵子已经采集下来，冷冻后以备她将来使用。
The male and female birds take turns in sitting on the eggs.
雄鸟和雌鸟轮流伏窝。
空调设备
