His suitability for the job is open to question.

他是否适合担任这工作还需要考虑。

《牛津词典》

This issue is open to question.

这个问题是值得商榷的。

youdao

Whether that would have stopped the housing bubble is open to question.

这是否能防止房产产生泡沫并未可知。

youdao

Whether Nasa could maintain this schedule even if President Obama endorses the Constellation programme is open to question, however.

BBC: Spaceship passes critical review

Nevertheless, whether Europe will follow through on suggestions to cap its dependence on Russian gas is open to question.

ECONOMIST: Don't worry, there won't be an effective gas cartel

However, there will be redundancies, and the ability of the industry in its current cycle to absorb them is open to question.

FORBES: The Break Up - Bankrupt THQ's Assets Sold At Auction