methyl donor

• 甲基供体

methyl donor的用法和样例：

例句

1. Betaine is a methyl donor which is more effective than the methionine or choline and has a high biological value.
   甜菜碱是一种比蛋氨酸或胆碱更为有效的甲基供体，具有很高的生物效价。