a method of grafting

例句：

1. 1. The scientist grafted a newspecies of plant onto the old one.
   科学家将一种新品种的植物嫁接到老植物上。
2. 2. The carpenter grafted the tree to the fence forsupport.
   木匠把树嫁接到篱笆上以支撑它。
3. 3. The farmer grafted the disease-resistant variety onto thesusceptible plants.
   农民把抗病品种嫁接到易感植物上。