1. It concludes the positive affect, locus of control, hardiness, hope and self-efficacy. 即正面情绪、主控信念、坚强人格、希望和自我效能。
2. Breeding programs in New York, Ontario, Arkansas, and elsewhere continue to produce seedless selections with improved hardiness and quality. 育种计划在纽约，安大略省，阿肯色，和其他地方继续改进生产和质量抗寒无籽选择。
3. I have observed that only those plants in nature which are strongest survive and reproduce themselves. It seems to me that hardiness is the chief essential for success. 据我观察，在自然界中，只有那些最强壮的植物才能立足、生存和繁殖。依我看，坚韧不拔乃成功之要素。
英英解释
n.
1. the property of being strong and healthy in constitution
2. the trait of being willing to undertake things that involve risk or danger
