Praetersonics
高超声波学, 极超短波晶体声学
🗣️ 情景例句
You're going to have the time of your lives.
你们将会玩得非常痛快。
Judy is so reserved that it is hard to understand her.
朱迪非常内向而木讷，因而很难使人了解她。
I may.I can't make up my mind.
有可能退。我还拿不定主意。