Combinatorial problem
[计] 组合问题
🧩 词语组成解析
[计] 组合的
🗣️ 情景例句
I've never been more serious.
我从来没有比现在更认真了。
Be considerate towards the poor.
要为穷人著想。
It's a pity I didn't think of it earlier.
很可惜，我没有早一点想起这事来。