nucleophilic group

例句：

1. 1. The reaction of the acid with the base is a classic example of a nucleophilic substitution.
   酸与碱的反应是典型的亲核取代反应。
2. 2.The enzyme catalyzes the nucleophilic attack on the substrate.
   该酶催化对底物的亲核攻击。
3. 3.The study of these groups is crucial for understanding the reactivity of organic molecules.
   研究这些团簇对于理解有机分子的活性至关重要。