Traskite
硅铁钡钛矿
🗣️ 情景例句
It's nice seeing you.
非常高兴见到你。
Knowledge is a treasure, but practice is the key to it.
知识是一座宝库，实践是打开宝库的钥匙。
Not that long ago!I'm not more than twenty-nine myself.
不，没有那么久。我自己现在还没29岁呢。