Piezotransistor
压电晶体管
🗣️ 情景例句
When you have nothing to do, time goes slowly.
你没事做时，时间便过得很慢。
What's your favourite pastime?
你喜爱的消遣是什么？
Come to school in your old clothes tomorrow!
明天上学时请穿旧衣服来！