The 4 letters words Wang Yi told Rubio: 好自為之 The 4 words are used talking from a superior to a subordindate or father talking to son to “behave oneself or face consequences” it is just that simple, why make it so complicated. 王毅告訴盧比奧的四個字：好自為之 這四個字是上級對下級說的話，也是父親對兒子說的話，告訴他們“守規矩，否則承擔後果”，就這麼簡單，何必搞得這麼複雜.