quartoEnglish → ChineseOxford English–Chinesequarto /BrE ˈkwɔːtəʊ , AmE ˈkwɔrdoʊ / noun pl quartos 1 [countable] (book) 四开本书 2 [uncountable] (size) 四开; quarto book/volume/size 四开本的书/四开本卷册/四开