Combinatoric
a. 【数学】组合学的
🗣️ 情景例句
Do you accept credit cards?
你们接受信用卡吗？
Bill was very jumpy as he waited for the phone to ring.
贝尔忐忑不安地等着电话来。
The next stage is to get the elephant to the training establishment,
下一步就是把象带到训练场所，