6个数字有多少种排列方式简介：At this time, Ye Feihua had just succeeded in the experiment, but he was able to flash three times in a row, with the distance of each flash being more than 20 meters. Such training results already surprised him.
At this time, Ye Feihua had just succeeded in the experiment, but he was able to flash three times in a row, with the distance of each flash being more than 20 meters. Such training results already surprised him.
