idiom > Letter and a certificate
Contents
信而有证
Pinyin: xìn ér yǒu zhèng

Explanation: 真实而有根据。

No. 2
　　True and justified. Han Xu Shen "<Shuo Wen Jie Zi> order": "For Casino learned person big or small, while the letter card, verifying their essays that will be group class management, solution error, Xiao scholars, up to God infer."
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