steadfastness

例句：

1. 1. The team's steadfastness in the face of adversity is commendable.
   面对逆境，该团队的坚定令人钦佩。
2. 2.His steadfastness in his decision to leave was a testament to his character.
   他决定离开时的坚定证明了他的品格。
3. 3. The company's steadfastness in maintaining its core values has helped it thrive in the competitive market.
   公司坚持其核心价值观的坚定性帮助它在竞争激烈的市场中脱颖而出。