complement of an arc

例句：

1. 1. The teacher added a new textbook to the class.
   老师给班级增加了一本新书。
2. 2.She supplements her diet with fresh fruits and vegetables.
   她用新鲜水果和蔬菜来补充她的饮食习惯。
3. 3. The project requires additional resources to complete successfully.
   这个项目需要额外的资源才能成功完成。