Integal equation
[机] 积分方程式
🧩 词语组成解析
🗣️ 情景例句
She majored in math and physics at university.
她在大学里主修数学和物理。
I'm going to show him how to speak Spanish.
我正要指点他如何讲西班牙语。
No, it isn't yours! said Miss Yang.
“不，不是你的书！”杨小姐说。