Pitran
压电晶体管
🗣️ 情景例句
Take care, and have a nice flight.
请保重！祝你一路顺风！
Sorry to bother you.
抱歉打扰你。
There are one hundred thousand million stars in our own Milky Way alone,
仅我们的银河系就有1000亿颗恒星，