Sffd
abbr. step-function frequency discriminator 阶跃函数鉴频器
🗣️ 情景例句
No, Mom. We had a great time.
不， 妈妈。我们玩得很高兴。
Force can never destory right.
暴力决不能摧毁正义。
I'd like to introduce you to our company. Is there anything in particular you'd like to know?
我将向你介绍我们的公司，你有什么特别想知道的吗？