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
Nowadays many people go traveling for the holidays.
下面许多人都在假期里去度假。
It is right to put everything in its proper use.
凡事都应该用得其所。
Is this Mr. Jones?
是琼斯先生吗？