mother board

例句：

1. 1. The mother board is the main component of the computer system.
   主板是计算机系统的主要组件。
2. 2. The mother board is responsible for handling all the data and instructions coming into the computer.
   主板负责处理所有进入计算机的数据和指令。
3. 3. The mother board is a critical component that ensures the proper functioning of the computer.
   主板是一个关键组件，确保计算机的正确运行。