vacillation
US /ˌvæs.əˈleɪ.ʃən/
UK /ˌvæs.əˈleɪ.ʃən/

1.
犹豫不决, 动摇, 踌躇
the inability to decide between different opinions or actions; indecision.
:
•
His constant vacillation made it difficult to move forward with the project.
他持续的犹豫不决使得项目难以推进。
•
The government's vacillation on the policy caused public distrust.
政府在政策上的犹豫不决导致了公众的不信任。