求翻译：在最短时间内记忆100个无规律数字，观察黑板上的100个数字，然后依次背出来，不能有任何错误。我已经练习了4年，最短用时1分钟。所需设备是黑板.粉笔。是什么意思？

100 memory in the shortest time irregular figure, observed numbers on the blackboard 100, then turn back out, can not have any errors. I have been practicing for four years, with a one minute minimum. Necessary equipment is the blackboard. Chalk.

within the shortest time an irregular figures 100 memory, observation 100 figures on the blackboard and then back out, and there is no error. I have been practicing 4 years and the shortest 1 minutes. The required equipment is blackboard chalk . .

In the shortest time remembered 100 disorder numerals, observe on the blackboard 100 numerals, then the back comes out in turn, cannot have any mistake.I have already practiced for 4 years, short with time 1 minute.Needs the equipment is the blackboard. Chalk.

Memory 100 irregular figures in the shortest time, observe 100 numbers on the Blackboard, then back out, and there is no error. I have practiced for 4 years, the shortest time 1 minute. Equipment required is Blackboard. chalk.

Memory 100 irregular figures in the shortest time, observe 100 numbers on the Blackboard, then back out, and there is no error. I have practiced for 4 years, the shortest time 1 minute. Equipment required is Blackboard. chalk.