known [基本字彙]【動詞】know 的過去分詞【形容詞】眾所皆知的; 著名的the only known case 唯一被知悉的事a known authority 眾所皆知的權威【名詞】已知的事In this instance, the only known is our actual profit margin.在此場合中, 唯一能知道的事就是我們的實際可得的利潤