他今天早上在家中被身份不明的闯入者射杀。He was shot this morning by unidentified intruders at his house.哥伦布竖蛋这个真伪不明的故事十分有趣.The apocryphal story of Columbus and the egg is very interesting.物质是某种不明的东西.Matter is an unknown somewhat....

“不明的”的英语可以翻译为：[医] acataleptic ...