focalKK [ˋfokəl] /ˈfoʊkəl/发音形容词1焦点的、焦距的光学Adjust the focal length of the lens before you shoot.拍摄前先调整镜头的焦距。2核心的、中心的、重点的The old fountain is the focal point of the whole square.那座旧喷泉是整个广场的视觉焦点。3病灶的、局部的医学The scan revealed focal damage in a small area of the brain.扫描显示脑部有一小块区域出现局部损伤。用这个字练口说→