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
I have a suggestion for you ...
我有一个建议……
I haven't heard from him for a long time.
我很久没有收到他的信了。
I was waiting for the sound of the other shoe!
我一直在等待另一只鞋落地的响声！