脂肪的每一单位重量的热量两倍于蛋白质和碳水化合物的。

Fats contain more than twice as much energy (calories) per unit of weight as proteins and carbohydrates.

youdao

脂肪的每一单位重量的热量两倍于蛋白质和碳水化合物的。

Fats contain more than twice as much energy (calories) per unit of weight as proteins and carbohydrates.

youdao