keypunch

例句：

1. 1. She was keypunching the keyboard with her fingers.
   她用手指敲击键盘。
2. 2. The programmer had to keypunch a complex algorithm for the software.
   程序员必须敲击复杂的算法来为软件编程。
3. 3. The punching machine is designed to keypunch uniform sheets of metal.
   打孔机被设计用来对金属板材进行均匀的打孔。