共 
電子是一種帶有負電的次原子粒子，通常標記為 e − {\displaystyle e^{-}\,\!} 。電子是第一代輕子，以重力、電磁力和弱核力與其它粒子交互作用。輕子是構成物質的基本粒子之一，無法被分解為更小的粒子。電子帶有1/2自旋，是一種費米子，根據包立不相容原理，任何兩個電子都不能處於同樣的量子態。電子的反粒子是正子，其質量、自旋、帶電量大小都與電子相同，但是電量正負性與電子相反。電子與正子會因碰撞而互相湮滅，並在這過程中，生成一對以上的光子。 
維基百科本書特色
The theme of Book Six is “Business”.
The contents are “To visit and to negotiate”, “Introduction of products”, “To visit the factory”, “To inquire the prices”, “To negotiate the prices”, “To place an order”, “To deliver goods”, “ payment”,”To return goods” and “To issue an invoice”. Let you be equipped with the ability of using business language in a short time.
Are you going to make a business with Chinese? What’s the difference of various business culture? Once you have this book, you do not need to rely on interpreter when doing business.
本冊的主題是「談生意」。內容有：拜訪洽談、產品介紹、參觀工廠、詢價、議價、訂貨、送貨、付款、退貨、開發票等，讓您在最短時間內學會商場上的必備語言。
想跟華人開口交談做生意嗎？與華人「談生意」時該怎麼說？該說什麼？參觀工廠時要注意什麼？有什麼不同的商場文化？擁有這本書，做生意不必靠翻譯。
光碟圓標文案
100堂中文課 100 Units Chinese
6 談生意 Business
1 To visit and to negotiate
2 Introduction of products
3 To visit the factory
4 To inquire the prices
5 To negotiate the prices
6 To place an order
7 To deliver goods
8 payment
9 To return goods
10 To issue an invoice
