Integal equation
[机] 积分方程式
🧩 词语组成解析
🗣️ 情景例句
Well, we always talk about
说的也是， 我们常在谈论
Father has prescribed a course of action for my bother.
父亲指使弟弟的行动。
Oh! Well, for that, you'd better find an English pen friend.
哦！那你最好为此找一个英文的笔友。