Pneumodograph
鼻呼 吸气量描记器
🗣️ 情景例句
Just sketching.
只是画些草图。
Who laughed a while ago?
刚才谁在笑？
It can copy a long report and sort the copies and pin them together.
现它可以复印长篇的报告，把复印件分类，并装订起来。