Electrostethograph
[医] 电心音描记器
🗣️ 情景例句
It all sounded so easy
一切听起来都那么容易。
A wise man needs not blush for changing his purpose.
智者不耻于改变初衷。
If, as has been reported, they have protected humans from sharks,
正如报道中所说，如果海豚保护人不受鲨鱼侵害，