Farvitron
线振质谱计
🗣️ 情景例句
I owe you an apology for what I did last night.
我应该为昨天晚上的事向你道歉。
I've never heard that piece before.Who wrote it?
我从来没听过那乐章，那是谁写的？
Sure! You're welcome!
当然！欢迎你！