三来一补企业 "the enterprises that process raw materials on clients' demands, assemble parts for the clients and process according to the clients' samples; or engage in compensation trade."

　　三连冠 three successive championships

　　三连胜 hat-trick feat (Liu Xiang steals limelight after hat-trick feat at National Games. 刘翔全运会获三连胜佳绩，成媒体关注焦点。)

　　三 民 主 义 the Three People's Principles (Nat ionalism, Democracy and the People's Livelihood) put forward by Dr. Sun Yat-sen

　　三农问题 issues concerning agriculture, countryside and farmers

　　三陪 girls who provides illegal sexual services, esp. prostitute

　　三权分立 separation of the executive, legislat ive and judicial powers

　　三十而立 "A man should be independent at the age of thirty. / At thirty, a man should be able to think for himself." 三通 "three direct links of trade, mail, and air and shipping services across the Taiwan Straits

　　" 三通一平 "three supplies and one leveling; supply of water, electricity and road and leveled ground (conditions ready for further economic development)" 三网

　　融合 tri-networks integration (The much-anticipated tri-networks integration will cover China's urban areas in three years, five years at most, the Securities Daily reported Monday, cit ing an unnamed official with the Ministry of Industryand Information Technology (MIIT). 《证券日报》本周一援引工业和信息化部一位未透露姓名的官员的话说，备受期待的三网融合将在三至五年内覆盖中国的城市地区。)

　　三维电影 three-dimensional movie

　　三维动画片 three-dimensional animation

　　三无企业 "three-no-enterprises (It refers to enterprises with no capital, no plant,

　　and no administrative structure.)"

　　三峡工程 Three Gorges Project

　　三峡水利枢纽二期工程 the second phase of the key water control project at the Three Gorges on the Yangtze River

　　三下乡 "a program under which officials, doctors, scientist and college students go to the countryside to spread scientific and literacy knowledge and offer medical service to farmers"

　　“三沿”开放(沿海、沿边、沿江) "Sea-shore, River-shore, Border-shore" opening-up

　　散装 load in bulk

　　三字经 three-character scripture

　　三资企业(中外合资企业,中外合作企业,外商独资企业) "three kinds of foreign-invested enterprises or ventures: Sino-foreign joint ventures, cooperative businesses and exclusively foreign-owned enterprises in China "

　　三自原则 principles of self-administration, self-support and self-propagation

　　三等功 third-class merits