Higher mathematics
[计] 高等数学
🧩 词语组成解析
[经] 上扬
🗣️ 情景例句
How are you doing?
你好吗？
A good teacher should always avoid embarrassing his students.
一位好的教师无论何时都应该避免使学生感到难堪。
Which one is cheap? Which one is dear?
哪一支便宜？哪一支贵？