Microstethophone
[医] 扩音听诊器
🗣️ 情景例句
What's the exchange rate today?
今天的兑换比率是多少？
Children enter school at the age of five,don't they?
孩子们在5岁时入学吗？
The railway station was big, black and dark.
火车站很大，又黑又暗。