Lowpass
低通滤波器
🗣️ 情景例句
You live like a pig!
你简直是住在猪窝里！
One has lived too near a wood to be frightened by owls.
深知底蕴，不以为怪。
We had some shoes like those a month ago,but we don't have any now.
一个月前我们有这要的鞋。但是现在没有了。