英语语法分析

Purine content livestock meat and beans food also many.

家畜肉类食品及豆类的普林含量也不少。

The following describes a low purine diet for the patient.

下面介绍一个低嘌呤饮食方案供患者参考。

The substitution of a purine for a pyrimidine, or vice versa is a transversion.

嘌呤为嘧啶取代或嘧啶为嘌呤所取代，叫做颠换。