reaper-and-binder

例句：

1. 1.The reaper and binder are essential tools for harvesting crops.
   收割机和绑定器是收获作物的必备工具。
2. 2.The binder is used to secure the edges of fabric together.
   绑定器用于将织物的边缘固定在一起。
3. 3. The reaper and binder were designed to make harvesting easier.
   收割机和绑定器的设计是为了使收割工作更加容易。