constancy meaning in English
n.
1.恒定不变，定型性，恒久(性)。
2.恒心；不屈不挠，坚忍不拔；坚贞；忠实。
Examples
- Deeply he respected her for her constancy .
他深深敬仰她的坚贞如一。 - Constancy in love is a good thing .
爱情能持之以恒才是好事。 - The pine is a badge of constancy .
松树是节操的象征。 - This depends on their constancy throughout many allied groups .
这取决于它们在许多近缘类群中的稳定性。 - The constancy of the speed of light seems, at first thought, unremarkable .
光速恒定，初看起来好像很平常。