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From the knowledge you have in your memory: Off the top of your head definition: The flat upper surface of something: In addition to something, especially something unpleasant: From the knowledge you have in your … On top of something definition: The highest place or part: Tutorials and guides - post and read various top eleven tutorials. In control of something or … In baseball, the first…. Top翻译：顶部, 顶；顶端；顶部, 上层表面, 衣服, 上装，上衣, 盖, （容器或笔的）盖子, 最重要, 玩具, 陀螺（同 spinning top.
