constancy

柯林斯词典

1. N-UNCOUNT Constancy is the quality of staying the same even though other things change. 恒久性
We live in a world without constancy. 我們生活在一個不斷變化的世界。
2. N-UNCOUNT Constancy is the quality of being faithful and loyal to a particular person or belief. 堅貞[表贊許]
...those who have proved their constancy in love. ...那些已經証明自己愛情堅貞的人們。