Praetrsonics
极超短波晶体声学, 特超声(学)
🗣️ 情景例句
I'm looking for somebody fit for the work.
我在找适合这项工作的人。
I did it without much difficulty.
我没费多少劲就完成了那项工作。
I think we can do that.
那我想没问题。