Combinatorial problem
[计] 组合问题
🧩 词语组成解析
[计] 组合的
🗣️ 情景例句
My girl friend and I broke up.
我和我女朋友分手了。
We are thinking of placing an order for your Flying Pigeon Brand bicycles. We would be very grateful if you could make us an offer for 200 ones with details.
我们正打算订购你方的飞鸽牌自行车。如果你们能给我们（购买200台的详细报盘将不胜感激。
While two detectives were keeping guard at the door, two others opened the parcel.
这时两个侦探把住门口，另外两个侦探打开了包裹。