So it may be impossible to verify its authenticity.

因此已不可能被确认其纯正性…

youdao

But China's secretive budgeting system makes it impossible to verify these figures.

但中国的保守预算体制使得这些数据难以证实。

youdao

According to some accounts which are impossible to verify, a major barracks or security headquarters has fallen to the opposition.

据一些无法证实的报道，一个主要的兵营或安全总部已经倒向反对派一边。

youdao

It is impossible to verify who precisely is driving the demand for Chinese consumer goods.

WSJ: Luxuries Flow Into North Korea

They are systems not suited to preemptive warfare and their deployments are impossible to verify effectively.

CENTERFORSECURITYPOLICY: Center for Security Policy | An Assessment Of Future Requirements For US Strategic Forces And Strategic Arms Control

Finally, it is impossible to verify a ban that extends to very low yields.

CENTERFORSECURITYPOLICY: Six Secretaries of Defense Urge Defeat of C.T.B.T.