Combinatorics
n. 组合学,组合数学
🗣️ 情景例句
But next time, please ask me in advance to make a speech.
不过下一次请事先通知我一声要做演讲喔。
If he gets scared at the night noises, be patient with him.
如果他晚上感到害怕，请你们多多见谅。
Country people run wild when they go shopping in the city and stagger home loaded with as many of the exotic items as they can carry.
乡里人进城采购欣喜若狂，每次回家时都买足了外来商品，直到拿不动方才罢休，连走路都摇摇晃晃的。