Pantolactone
[化] 泛内酯
🗣️ 情景例句
Can you tell me where the campus library is located?
能告诉我校图书馆在哪儿吗？
My name is Thomas.
我叫汤姆斯。
Oh, cheer up!perhaps we didn't to do badly.
啊，别灰心！或许我们考得还不太糟。