a冒昧的写这封信 Takes the liberty to write this letter[translate] a如果我们已经付款 If we already paid money[translate] a功能美与形式美的统一 正在翻译,请等待...[translate] a生日快乐!嘿嘿 The birthday is joyful! Heh heh[translate]
To reflect that replacement and recognize the contribution of Horst Rittel, Melvin Webber and West Churchman, a three-letter abbreviation RWC is added to the model’s name, in which R for Rittel, W for Webber and C for Churchman; 3. Three additional approaches to research are included and s...