4个数三中三多少组怎么算

简介：Zhu Cixiang traveled through time, and the Jiashen Incident was right in front of him. Every minute and every second of his time was precious and could not be wasted on these two people. Moreover, these two people could not teach him anything useful, so he never saw him. They, but they didn't expect that they were so stubborn and asked to see them every day, but today they were stuck on the roadside.