Combinatorics
n. 组合学,组合数学
🗣️ 情景例句
I'd rather wait for the live show myself.
我宁愿等到有现场演出时才看。
Did you go to the party yesterday?
你昨天去参加聚会了吗？
She felt inhere handbag for the piece of paper on which her father had written down al the details of the journey and gave it to the porter.
她从钱包里摸出一张纸条，那上面有她父亲对这次旅行详细说明，她把这张纸条交给了搬运工。