Electrostethoscope
电扩音听诊器
🗣️ 情景例句
What's wrong, Susan?
有什么问题吗， Susan？
Don't make it any worse than you can help.
尽量不要把事情弄得更糟。
That's what we did in China in the old days, before thermoses were invented, said Wei Hua.
“那是我们中国从前未发明出热水瓶时的做法。”魏华说。