Kicksorting
振幅分析
🗣️ 情景例句
study for my math final.
温习数学 准备期末考试。
I hope we will be able to maintain this good relationship and make next year another great one together.
我希望我们还能保持这样良好的关系共创辉煌的来年。
How would you go to Beijing, by air or by train?
你怎样去北京，是乘飞机还是坐火车？