Piezoceramics
压电陶瓷
🗣️ 情景例句
Sure, Ellen.
当然 Ellen。
A man that breaks his word,bids others to be false to him.
人不守信，无异于叫旁人对他失信。
and existence an empty laugh braying across the mysteries;
如果存在不只是对神秘事物的一种空虚的笑声，