坚果和鱼都含有蛋白质。

Nuts and fish both contain ___protein.

味噌汤中的原料提供蛋白质，有助于保持身体健康。

Ingredients in miso soup provide ___protein, which helps keep our bodies healthy.

均衡饮食必须包含足够的蛋白质，用于肌肉修复和生长。

A balanced diet must include adequate ___protein for muscle repair and growth.