necessary amino acids

• 必需氨基酸

necessary amino acids的用法和样例：

例句

1. This product also contains rich essential amino acids and antioxidant.
   此产品还含有丰富的必需氨基酸和抗氧化剂。
2. It is apparent from inspection of the table that poultry meat and eggs are relatively high in many of the essential amino acids.
   如表所示，显然在禽肉和蛋类里许多必需氨基酸含量相对较高。