the quality of being strong and able to survive difficult conditions and bad weather 能吃苦耐劳的;适应力强的 The people here are known for their hardiness and courage. 这里的人们以坚韧和勇气著称。
the quality in a plant of being able to live outside through the winter 坚韧性: 植物能够过冬的品质winter/cold/frost hardiness 冬天/寒冷/严寒