Combinatorics
n. 组合学,组合数学
🗣️ 情景例句
I happen to have
我这儿碰巧有一项
How long will you remain in the country?
你将会在乡间逗留多久？
Mrs.Anne Sterling did not think of the risk she was taking when she ran through a forest after two men.
安。斯特林夫人在穿过森林追赶两个男人时，她并没有考虑到所冒的风险。