Protonium
[原物]质子素
🗣️ 情景例句
What time does the library close?
图书馆什么时候闭馆？
Nothing is impossible (or difficult) to the man who will try.
天下无难事，只怕不努力。
Sorry, I don't have one. Ask Lily. I think she has one.
对不起，我没有，问问莉莉，我想她可能有。