Praetrsonics
极超短波晶体声学, 特超声(学)
🗣️ 情景例句
What time would you like to receive the call?
您想何时叫您？
She is scared to death.
她吓得半死。
The thieves' car was badly damaged and easy to recognize.
小偷的车损坏严重，很容易辨认。