不可确认

The claim made by the politician was unconfirmable, leaving the public unsure of its validity.
政治家提出的主张无法证实，这让公众对其有效性感到不确定。
Despite numerous attempts, the researchers were unable to confirm the unconfirmable results of their experiment.
尽管进行了多次尝试，研究人员仍无法证实他们实验中无法证实的结果。
The identity of the anonymous donor was unconfirmable, leading to speculation about their true intentions.
匿名捐赠者的身份无法证实，引发了关于他们真正意图的猜测。
The story that he told me was unconfirmable, and I couldn't be sure if it was true or not.
他告诉我的故事无法证实，我无法确定它是否真实。
The authenticity of the ancient artifact was unconfirmable, as there were no records or evidence to support its origin.
这件古董的真实性无法证实，因为没有记录或证据支持它的来源。
The witness's testimony was unconfirmable, as there were no other witnesses to corroborate their story.
证人的证词无法证实，因为没有其他证人来证实他们的说法。
The rumor that spread on social media was unconfirmable, and many people believed it without verifying its accuracy.
在社交媒体上传播的谣言无法证实，许多人相信它而没有验证其准确性。
The company's claim that their product is the best in the market is unconfirmable, as there are no objective criteria to measure this.
该公司声称他们的产品是市场上最好的，这是无法证实的，因为没有客观标准可以衡量这一点。
The location of the lost city was unconfirmable, as there were no maps or historical records to pinpoint its exact whereabouts.
失落城市的地点无法证实，因为没有地图或历史记录可以精确指出其确切位置。
The artist's claim that they created a groundbreaking new style was unconfirmable, as there was no way to verify its originality or uniqueness.
艺术家声称他们创造了一种开创性的新风格，这是无法证实的，因为没有办法验证其原创性或独特性。