the quality of being enduring and free from change or variation;
"early mariners relied on the constancy of the trade winds"
(psychology) the tendency for perceived objects to give rise to very similar perceptual experiences in spite of wide variations in the conditions of observation
faithfulness and dependability in personal attachments (especially sexual fidelity)
例句
用作名词(n.)
Constancy in love is a good thing.爱情能持之以恒才是好事。
The secret of success is constancy of purpose .成功的秘诀是目标的坚定性。
He admired her courage and constancy.他钦佩她的勇气和忠贞。
Never doubt the constancy of my love for you.绝对不要怀疑我对你爱的忠诚。