S=Son M=Mom

S：Mid-Autumn Festival's coming.

M：Yes,  it's  one  of China's three major festivals. And time for family to get together.

S：According to astrology, the full moon of the eighth lunar month is said to be the nearest, largest and most beautiful moon of the year.

M：Seems you know a lot. Tell me more about the Mid-Autumn Festival

S：It's  concerned  about the practices  of moon-gazing, barbeques, pomelo, story of Hou Yi and Chang E, and 'moon cake.'

M：Yes. Moon-gazing is an activity, which gets family together. Meanwhile, they have barbeques and pomelo to celebrate the festival. Of course, the story of Hou Yi and  Chang E really touches us. Why don't you talk about 'moon cake'

S：Sure! During  the Yuan dynasty, the invading Mongols kept order by billeting one of their own with each tithe-group of ten families, practicing ruthless control.
M：What's the link

S：To announce the date of his uprising, rebel leader Zhu Yuan Zhang hit upon the idea of hiding a message inside the moon cakes distributed among Han-Chinese.

M：I've got it. That was  the way they communicated with each other.

S：Bingo! Evidently, the plan worked. That's how the moon cakes are derived from.

M：Brilliant! What are you doing

S：I am placing  notes  inside the moon cake.

M：For what

S：To tell my  friends  to  spank  my younger brother if he keeps using my computer.

兒子：中秋節到了！
媽媽：是的，中國的三大節日之一。而且是家人團圓的日子。
兒子：根據星象學，農曆八月的滿月是最近的、最大的，也是年度最美的。
媽媽：你知道很多喔！多說一些啊？
兒子：這是有關賞月、烤肉、文旦、嫦娥和后羿，以及月餅的故事。
媽媽：沒錯。賞月讓家人團圓，同時，全家人可以烤肉、吃文旦來慶祝這個節日。當然，嫦娥和后羿的故事也相當感人。何不說說月餅呢？
兒子：當然可以，相傳在元朝，入侵的蒙古人為了執行高壓統治，規定十個家庭就要有一個士兵監視。
媽媽：這跟月餅有關嗎？
兒子：為了要推翻蒙古統治，抗元統帥朱元璋想到了一個主意，把訊息用紙條藏在月餅裡發放給漢人。
媽媽：我懂了。那就是他們彼此溝通的方法。
兒子：沒錯，事實證明計畫成功。那就是月餅的由來。
媽媽：太好了。你在做什麼？
兒子：我在月餅裡放一些紙條。
媽媽：要做什麼呢？
兒子：要告訴我的朋友們，如果弟弟再用我的電腦，請大家來幫我打他。