Let us talk about the history of piezoelectric ceramics, piezoelectric ceramic is capable of converting mechanical energy and electric energy conversion of the functions of ceramic materials.
首先谈谈压电陶瓷历史，压电陶瓷是一能够将机械能和电能互相转换的功能陶瓷材料。
Then let us sit down and have a good talk about it. What are the things you can't accept?
那我们坐下来好好谈一下吧。都有哪些地方%你们不能接受呢？
Now, let us listen as two friends talk about the party they are about to attend.
现在，让我们听听两个朋友谈论他们准备参加的聚会吧。
You don't have to respond to these views or debate them. Let each of us talk about our own.
对这些看法，不要求回答，也不要辩论，可以各讲各的。
You don't have to respond to these views or debate them. Let each of us talk about our own.
对这些看法，不要求回答，也不要辩论，可以各讲各的。
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