The child played with a scale model of a Trident submarine.孩子玩着一只三叉戟潜艇的比例模型。The navy plans to move its Tridents.海军计划调动其三叉戟潜艇。Each Trident sub is said to pack more wallop than the combined fleets of all navies in World War II.据说，每艘三叉戟潜艇配备的打击力比第二次世界大战中所有海军舰队的打击力总和还大。