自从那次争端以来，他们之间一直存在公开的敌意。

There has been ___open hostility between them ever since that dispute.

政府承诺就新政策举行公开辩论。

The government has pledged to hold an ___open debate on the new policy.

委员会拒绝与利益相关者进行公开讨论。

The committee declined to engage in an ___open discussion with the stakeholders.