Piezoelectrics
压电体
🗣️ 情景例句
I know all the ins and outs of the business.
我重新夺得关于这件事所有的详情。
The phone is ringing.
来电话了。
Why? English is the first language in none of these countries.
为什么？在这些国家中英语都不是第一语言。