Serrasoid
锯齿波(调制)
🗣️ 情景例句
Is this the window for claiming parcels?
这是领取包裹的窗口吗？
The building of the new road has been held up by bad weather.
这条新马路的修筑因天气恶劣而受阻。
You're everything to me.
你是我的一切！