Electrostethograph
[医] 电心音描记器
🗣️ 情景例句
Would you like something to eat?
来吃点东西， 好吗？
I'm sorry, but she won't have any openings until 11:00, unless there's a cancellation.
对不起，除非有预约取消，11点以前她没有空。
I don't know. sir.
我不知道，先生。