1. The manager insisted on sticking to his original plan inflexibly, despite the team's suggestions for improvement.

经理坚持固执地坚持他原先的计划，尽管团队提出了改进的建议。

2. She held onto her beliefs inflexibly, refusing to consider any alternative perspectives.

她固执地坚守着自己的信仰，拒绝考虑任何替代的观点。