under-proof

例句：

1. 1. The under-proof data suggests that the new model is not as reliable as advertised.
   未被证明的数据表明，这款新模型并不像广告中宣传的那样可靠。
2. 2. The company has been under-proof for several years due to poor management.
   由于管理不善，该公司已经连续几年未能通过验证。
3. 3. The under-proof test results showed that the product did not meet the required standards.
   未通过验证的测试结果显示，该产品没有达到规定的标准。