補充，蛋白英文是 protein，這個英文單字也是蛋白質的意思。
蛋黃英文造句練習
High-quality egg have high-quality egg yolk.高品質的雞蛋有高品質的蛋黃。
Nutrition of yolk is very rich.
蛋黃的營養成份很豐富。
Egg yolk is natural food which contains vitamin D .
蛋黃是少數含有維生素D的天然食物。
In general, an egg only have one yolk.
一般來說，一顆雞蛋只有一個蛋黃。
Yolk function is to provide nutrients needed to grow the embryo.
蛋黃的功能是提供胚胎成長所需要的營養。
Yolk calories higher than protein.
蛋黃的熱量比蛋白高。
Egg yolk contains vitamin A component.
蛋黃含有維生素A的成分。
After heating the yolk will be solidified into a solid.
蛋黃加熱之後會凝固成固體。