command system的用法和樣例：
例句
- There is something wrong with the computer so that I can't enter into the instruction system.
電腦出了故障，以至於我無法進入指令系統。 - The Internet is an international collection of computer networks that all understand a standard system of addresses and commands connected together through backbone systems.
網際網路是一個計算機網路的國際性集中，都使用一套標準的地址和命令系統，通過骨幹系統連接在一起。
