four-address instruction code

例句：

1. 1. The computer uses a four-addressinstruction code to store data.
   计算机使用四地址指令代码来存储数据。
2. 2. The four-address instruction code is used to control theoperation of the computer.
   四地址指令代码用于控制计算机的操作。
3. 3. The four-address instructioncode is a complex system that requires carefulprogramming.
   四地址指令代码是一个复杂的系统，需要仔细编程。