Calculuses
微积分, 微积分学, 计算, 演算, 结石, 积石, 牙垢
🗣️ 情景例句
My vacation was too short, I needed more time.
假期太短了，再有几天就好了。
When poverty comes in at the door, love flies out at the window.
贫穷进门来，爱情飞窗外。
Can you come at 2 p.m.?
您下午两点钟来行吗？