fastness to decatizing

例句：

1. 1. The old tree has afastness that makes it difficult to fell.
   这棵老树的坚韧使它难以砍伐。
2. 2. The new car has a fastnessthat lasts for many miles on asingle charge.
   这款新车的耐久性使得一次充电可以行驶很远的距离。
3. 3. The materialis known for its fastness in extremetemperatures.
   这种材料以其在极端温度下的耐久性而闻名。