I think it is open to dispute.

我认为，在这一点上还有待讨论。

His interpretation of the poem is open to dispute.

【dispute】他对这首诗的诠释是有争议的。

The spheres of authority being vague and open to dispute, the plan had to be abandoned at the end of ten years.

权力范围模糊且容易引起争议，该计划不得不在十年结束时放弃。