Definition
- B1
the most important or only way to accomplish something.
關鍵（达成某事的最佳或唯一途徑）
Perseverance is the key to overcoming challenges.
堅持是克服挑戰的關鍵。
Good communication is the key to building strong relationships.
良好的溝通是建立穩固關係的關鍵。
Patience is the key to learning a new skill.
耐心是學習新技能的關鍵。