graft versus host

例句：

1. 1. The surgeon performed a successful graft on the patient's arm.
   外科医生成功地为患者的手臂进行了一次移植手术。
2. 2. The scientist discovered a new method for grafting plants.
   科学家发现了一种新的植物嫁接方法。
3. 3. The team successfully grafted the tree onto the rootstock.
   团队成功地将这棵树嫁接到根球上。