1. The casehardened steel provides enhanced durability and resistance to wear. (淬火钢提供了更好的耐用性和抗磨损性。)
2. She had a casehardened attitude towards relationships after being betrayed multiple times. (经历多次背叛后,她对待感情的态度变得坚定不移。)
3. It is important to remain casehardened in the face of adversity. (面对逆境,保持坚定不屈很重要。)