constancy (the quality of staying the same; lack of change )注重前后一致不变 continuity (the quality of something that does not stop or change as time passes)是前后连贯,连续 consistency (the quality or fact of being consistent;the quality or fact of staying the same at different times ;the quality or fact of having parts that agree with each other )注重始终如一,前后不矛盾 参考http://www.***.com/