不足为据
- na.can't prove the point
 - 网络not to prove the point
 
不足为据不足为据
not to prove the point
 ... can't be taken as evidence 不足为凭 can't prove the point;not to prove the point 不足为据 不足的1.  insufficient ... 
                can't prove the point
 ... can't be taken as evidence 不足为凭 can't prove the point;not to prove the point 不足为据 不足的1.  insufficient ... 
                