una de cal y otra de arena

== Spanish == === Pronunciation === IPA(key): /ˌuna de ˌkal i ˌotɾa de aˈɾena/ [ˌu.na ð̞e ˌkal i ˌo.t̪ɾa ð̞e aˈɾe.na] Syllabification: u‧na de cal y o‧tra de a‧re‧na === Noun === una de cal y otra de arena f (uncountable) (idiomatic) an alternation of two opposite things, for example hot and cold, good cop bad cop, zigzag, up and down, happy one minute and sad the next === Further reading === “una de cal y otra de arena”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025