a cold case

英汉例句

The police do not always catch murderers. The evidence may be too limited, or the trail may run out of leads. The pursuit may end in a cold case.
警方不一定能把凶手绳之以法，可能因为证据有限，或是失去线索，案件可能最终成为一宗悬案。
The news routinely reports the solution of a cold case, a suspect excluded or a wrongful conviction overturned through advanced forensic technology.
新闻中经常出现毫无头绪的旧案水落石出、疑人改列非嫌疑人、冤昭雪等故事，都是先进鑑识技术的功劳。
Afterwards, Bowles announced that his team had decided to carry out a cold case review, codenamed Operation Stratton, on the suspected murder of Emma Smith.
而后，鲍尔斯宣布他的小组怀疑艾玛·史密斯是被谋杀的，决定将对这桩悬案开展代号为“斯特拉顿行动”的重新调查。

Although the case is reminiscent of episodes from the Cold War, Russia hailed the exchange as a positive development.