Catastrophe theory
[化] 突变论
🧩 词语组成解析
🗣️ 情景例句
What's your idea of price?
价格如何？
It has been a great year for all of us.
过去的一个，对我们大家来说，是辉煌的一年。
In the afternoon, classes are over at 3:30, and I get home at about 4:00.
下午三点半下课，我大概四点到家。