¿Sabías que...?: "Vale" puede tener el sentido de "de acuerdo". ¿Qué otros sentidos tiene?
effectiveness / eficacia
 
effectiveness   [ɪˈfektɪvnɪs]   -noun
1. (=efficiency)
a. [of method, system]   eficacia (f),   eficiencia (f)
b. [of treatment, deterrent, argument]   eficacia (f)
2. (=striking quality)   efecto (m)
 
Collins Spanish Dictionary - Complete and Unabridged and Audio Headword Pronunciation (Spanish) 8th Edition 2005 © William Collins Sons & Co Ltd. 1971,1988 © HarperCollins Publishers 1992,1993,1996,1997,2000,2003,2005.
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