Stacks
n. 堆叠；进程堆栈应用；书库（stack的复数）
🗣️ 情景例句
Good afternoon, Mr. Chen. Thank you very much.
下午好，陈先生。非常感谢。
Telling your troubles is swelling your troubles.
诉说烦恼等于增加烦恼。
This one is empty. Could I have a full one, please?
我能有一个满的吗？