プログレッシブ和英中辞典(第4版)の解説
われしりがお【我知り顔】
我知り顔で説明する
explain with a smug [superior/know-it-all] look on one's face/explain as if one had known it all along
日本語の解説|我知り顔とは
我知り顔で説明する
explain with a smug [superior/know-it-all] look on one's face/explain as if one had known it all along