点击浏览器的前进和后退按钮，浏览器就会在你的浏览历史中向前或向后导航。
Click the browser's back and forward buttons and the browser navigates backward and forward through the history of pages you've seen.
过去与未来摆在你面前，它们要求某种明确的行动这样你才够在现有关系中向前进。
The past and the future are present before you, and each requires a specific kind of action in order for you to be able to move ahead with a current relationship.
你能在TV之前购买便宜的锻炼录像并且在电视前进行练习，或者通过在你的邻近地区中走，慢跑或者骑车得到练习和新鲜的空气。
You can buy cheap workout videos and exercise in front of the TV, or get both exercise and fresh air by walking, jogging or biking in your neighborhood.
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