常見例句"Sometimes it looks more like an obtuse triangle," Winter said. “有時候它看起來更像一個鈍角三角形。”溫特說。Obtuse triangle: One of the three angles is an obtuse angle. The other two are acute angles. 鈍角三角形:有一個角是鈍角,有兩個角是銳角。He outlined the triangle in red. 他用紅筆畫出三角形。The angles of a triangle total 180. 三角形的三角之和等于180°。An obtuse, boring, or bothersome person; a pest. 討厭的人愚鈍的、無聊的或討厭的人; 害人精 返回 obtuse triangle