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
Well, make yourselves comfortable.
噢， 请大家自便。
How many boxes are you going to use?
你要用几盒？
There is a house near the river.
小河旁有一间房子。