perseveringly

例句：

1. 1.She persisted in her efforts to improve the quality of life for all.
   她坚持不懈地努力提高所有人的生活品质。
2. 2.The team persisted in their pursuit of victory despite the odds.
   尽管形势不利，团队坚持不懈地追求胜利。
3. 3. He persisted in his belief that the world would be a better place if only everyone followed the rules.
   他坚持认为，如果每个人都遵守规则，世界本可以变得更好。