名詞是constancy，n. 堅定不移恆久不變，副詞是constantly，adv. 總是，經常地，不斷地，複數constants，n. [數]常量，[數]常數物理常數（constant 的複數）
Surgical techniques are constantly being refined.外科手術技術正在不斷得到完善。
Maybe this is consistent with a change in the constants， but this would be the very first， and it would just change our view of the laws of nature.
複數constants
同義詞continual，continuous，uninterrupted，consistent，permanent，stable
