Sffd
abbr. step-function frequency discriminator 阶跃函数鉴频器
🗣️ 情景例句
Well, I ...
好啦， 我……
What will you do this weekend?
这周末你将干什么？
Sweden has evolved an excellent system for protecting the individual citizen from highhanded or incompetent public officers.
在瑞典，已逐渐形成了一种完善的制度以保护每个公民不受专横的和不称职的政府官员的欺压。