单文孤证

Explanation: The only evidence. Means that almost certainly apocryphal. 　　Source: Wei Li Yuan Road, "Waterways Sushui" test Fuqian is said, but also with popular characters, Yin text in Duchenne single solitary card carry on. " 　　Examples: Send your magazine recorded, as published in Greece, one to hear a little more than help, the second to see ~, it is difficult to 'definitely' a historical fact and are often 'What doubt' is. ★ Lu Xun's "Janus-faced _set_ on the version"