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把符号“+”看成“-”,把数字“5”看成“3”;忘了写答案,抄错了题;上学时忘了带做好的作业,开门后忘了把钥匙拔下来……
The symbol “+” as “-”, the number “5” as “3”; forgot to write the answer, copy the wrong title; forgot to bring homework to do homework, forgot to open the door after the key to pull down ...