Sadf
[计]= System Analysis and Design Facility,系统分析和设计设备[设施]，系统分析和设计程序
🗣️ 情景例句
Do you have anything to declare for customs?
有什么要申报呀？
Can you tell one from the other?
你能区别哪个是哪个吗？
Please forgive me for not writing to you.
原谅我没有写信给你。