Traskite
硅铁钡钛矿
🗣️ 情景例句
Yes, I'm ready.
是的，我想好了。
So many countries, so many customs.
一个国家有一个国家的风俗。
I once spend an uncomfortable weekend which I shall never forget at his house.
有一次，我在他家里度周末，过得很不愉快。这事我永远不会忘记。