Rpi
abbr. read progress index(ing) 有效进度指数; real progress Index(ing) 真实的进度指数; rated position identifier 确定的位置标志符（号）; revolutions per inch 每英寸走刀（主轴）转数
🗣️ 情景例句
Is something bothering you?
有什么事烦你吗？
He informed them that his mother had died.
他通知他们的母亲死了。
What a pity! Never mind. We must get together some other time for a chat.
真可惜！不过不要紧。我们必须找个时间聚一聚、聊一聊。