If you visualize something, you imagine what it is like by forming a mental picture of it.
例句
Susan visualized her wedding day and saw herself walking down the aisle on her father's arm...苏珊想象着婚礼日当天的情景——自己挽着父亲的手臂走在教堂的过道上。He could not visualize her as old...他想象不出她年老时的样子。