具体来说，就是一种鸡的蛋白质在形成蛋壳时所起的重要作用。

Specifically the vital role played by a chicken protein in forming it.

youdao

具体来说，就是一种鸡的蛋白质在形成蛋壳时所起的重要作用。

Specifically the vital role played by a chicken protein in forming it.

youdao