yolk cell

例句：

1. 1. The study found that the yolk cell in the egg is crucial for embryonic development.
   研究发现，鸡蛋中的蛋黄细胞对胚胎发育至关重要。
2. 2.The researchers extracted the yolk cell from the egg and analyzed its DNA.
   研究人员从鸡蛋中提取了蛋黄细胞并分析了其DNA。
3. 3. The yolk cell plays a vital role in the absorption of fats and vitamins during digestion.
   蛋黄细胞在消化过程中吸收脂肪和维生素起着重要作用。