Echometer
听诊器
🗣️ 情景例句
Grandpa!
爷爷！
Work today,for you know not how much you may be hindered tomrrow.
今朝有事今朝做，明朝可能阻碍多。
I read a few lines, but I did not understand a word.
我读了几行，但一个字也不懂。