Combinatorial mathematics
[计] 组合数学
🧩 词语组成解析
[计] 组合的
🗣️ 情景例句
You must be hungry by now.
你现在一定饿了。
He told me to take these pills every four hours.
他告诉了我每4小时吃一次这些药片。
How can you say that?
你怎么可以这样说？