Serrasoid
锯齿波(调制)
🗣️ 情景例句
I'm sorry to inform you that your application for ball has been refused.
很遗憾通知你， 你的保释申请书已经被驳回了。
He falls down the stairs.
他从楼梯摔了下来。
'This is a private conversation!'
“这是私人间的谈话！”