con·stan·cy
noun/ˈkɒnstənsi/
/ˈkɑːnstənsi/
[uncountable] (formal)- the quality of staying the same and not changing
稳定性；持久不变；始终如一 - the constancy of temperature inside the plane
飞机内的温度恒定
- the constancy of temperature inside the plane
- (approving) the quality of being faithful
忠诚；忠实；忠贞 - He admired her courage and constancy.
他钦佩她的勇气和忠贞。
- He admired her courage and constancy.
Word Originlate 15th cent.: from Latin constantia, from constant- ‘standing firm’, from the verb constare, from con- ‘with’ + stare ‘stand’.