Definition: continued effort and determination Level: C2
努力和坚持不懈最终会有回报。
Hard work and ___perseverance do pay off in the end.
没有伟大思想家的坚持不懈，许多科学进步就不可能实现。
Without the ___perseverance of great minds, many scientific advances would not have been possible.
在任何领域，坚持不懈对于取得长期成功都至关重要。
___Perseverance is essential for achieving long-term success in any field.
