u ractical 不实用的
P ractical 踏实专注
p ractical value 使
I'm the forth mathematics teacher and the forth pathic that were the most naughty children in the school with their ractical joke, please think a way to solve the problem! !
我是那帮学校里最淘气的孩子的第四个数学老师并且也是第四个被他们的恶作剧戏弄的受害者了！ 请向个办法解决这个问题吧！！
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