亲爱的妈妈:您好,您有一个一尺见方的宝贝铁箱子,轻易是不打开它的。一天,您偶尔忘了锁箱子,结果被弟弟看到后,打开了它。妈妈,我看到您的箱子里珍藏着童年的秘密,珍藏着童年的快乐。 Dear mother: Hello, you have a square iron baby box, it is not easy to open it. One day, you occasionally forgot to lock the box, the result was seen by his brother, opened it. Mom, I see the treasure of your childhood hidden in your box, cherish the joy of childhood.