Ts and Cs
noun [ plural ] (also T's and C's, Ts & Cs) uk/ˌtiːz ən ˈsiːz/ us/ˌtiːz ən ˈsiːz/
（协议、合同或活动的）条款及细则（terms and conditions 的缩写）
abbreviation for terms and conditions: the conditions that control an agreement, arrangement, or activity
Even the Federation Against Software Theft (FAST) admits that only 28% of people read the Ts and Cs before installing software. 即使是反软件盗窃联合会（FAST）也承认，只有28%的人在安装软件前阅读了条款及细则。