◎ 三缄其口 sānjiān-qíkǒu[speak with caution;absolute refusal to talk with one's mouth sealed more than once] 形容说话极其谨慎、不轻易开口 -----------------国语辞典:言语谨慎或不说话。《孔子家语.卷三.观周》:「孔子观周,遂入太祖后稷之庙,庙堂右阶之前,有金人焉,三缄其口,而铭其背曰:『古之慎言人也。』」宋.尤袤《全唐诗话.卷一.姚崇》:「钦之伊何?三命而走;谨之伊何?三缄其口。」法语 bouche cousue