Spirule
螺旋线尺, 根轨迹仪
🗣️ 情景例句
Yes, I know that.
是的 ，我知道。
There is no general rule without some exception.
普遍规律必有例外。
But you still haven't explained what you're doing here.
啊，你还没有说你是来干什么的。