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1 effective
[ɪ'fɛktɪv]adj( successful) skuteczny; ( actual) faktycznyto become effective ( JUR) — wchodzić (wejść perf) w życie
* * *[-tiv]1) (having power to produce, or producing, a desired result: These new teaching methods have proved very effective.) skuteczny2) (striking or pleasing: an effective display of flowers.) efektowny3) (in operation; working; active: The new law becomes effective next week.) obowiązujący