亮氨酸

例句：

1. 1.The protein is composed of various amino acids.
   这个蛋白质由各种氨基酸组成。
2. 2. The body needs a balance of all the essential amino acids.
   身体需要所有必需氨基酸的平衡。
3. 3. Nutritionists recommend that people consume enough leucine to support muscle growth.
   营养学家建议人们摄入足够的亮氨酸以支持肌肉生长。