There is no telling whether it is correct.

无法知道这事对还是不对。

youdao

Whether it is correct to select, use and install the mould.

模具的选用、安装是否正确。

youdao

Especially the origin of its documentary evidence whether it is correct or wrong is vital.

尤其是其始出书证的正确选择与否，至关重要。

youdao

Sadly it is impossible to prove whether her contention is correct: as I've mentioned before, depending on the time of day, investors and creditors seem by turns more frightened by the Scylla of unsustainable debt and then petrified by the Charybdis of possible recession.

BBC: Growth vs debt reduction

The question to ask of any proposed co-ordination is therefore whether it aims to correct those mistakes or protect them.

ECONOMIST: Europe��s new economics

The question which divides us is whether it is crazy enough to have a chance of being correct.

FORBES: Power of the Limber Brain