为了节约时间，集中更多的精力写报告，所有的英文都使用谷歌翻译，如有英文语法或词汇错误，请各位谅解。
To save time and energy to write more reports, all using Google English translation, if any English grammar or vocabulary mistakes, please understand.
为了保护小朋友的隐私，图片做了特殊处理，请各位读者谅解。
In order to protect the privacy of the little kids, and some of attached pictures with special treatment. I beg your understanding.
由于工作忙，所以经常不在线，所以请各位朋友谅解。
Being busy with work, seldom online, so I beg your understanding.
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