nourishment；營養物，食物等 nutrient；營養的成分，養分，像糖份，蛋白質，礦物質等 nutrition；營養，是統稱或抽象的概念，像營養不良，營養太過等
1) A python can survive by eating a large meal once or twice a year. When it does eat, microvilli in its small intestine lengthen fourfold and its stomach pH drops from 7 to 1. Explain the benefits of these changes. 蟒蛇可以靠每年...