in·vari·able /(ˌ)ɪnˈvɛriəbəl, ˈvær-/
不變的東西,常數(a.)不變的,不易的,常數的
In·va·ri·a·ble a. Not given to variation or change; unalterable; unchangeable; always uniform.
Physical laws which are invariable. --I. Taylor.
-- In*va*ri*a*ble*ness, n. -- In*va*ri*a*bly, adv.
In·va·ri·a·ble n. Math. An invariable quantity; a constant.
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invariable
adj : not liable to or capable of change; "an invariable
temperature"; "an invariable rule"; "his invariable
courtesy" [ant: variable]