Velocimetry
速度测量学
🗣️ 情景例句
Long time no see.
好久不见。
Yes. And another thing, would you mind not making long distance calls?
是的。还有一件事，请你别打长途电话了，好吗？
I'm sorry. I think I dialled the wrong number.
对不起。我想我拨错了号码。