Mathematical analysis
[计] 数学分析
🧩 词语组成解析
🗣️ 情景例句
Have yo ever been to Teem Plaza?
你到过天河城吗？
I will have done it by the time you come back.
在你回来之前，我会做完它。[将来完成时，表示将完成…，会做完…]
Not at all.
不客气。