"Keyframing" is the core of animation; it refers to a stage in the animation process wherein a few vital, difficult-to-draw frames which are key to the performance and personality of a character are drawn.
「原畫」是動畫產業的核心概念，指的是一段畫面裡，最關鍵、最能表現角色特性、卻也難畫的幾張圖。