人的一生拥有的时光不过是昨天、今天、明天。昨天无可挽回,逝去的只能回忆、总结;今天是新的开始,必须珍视、把握;明天是永远的希冀,是经历昨日和今日的磨砺才能到达的终极目标。 The only thing people have in their lives is yesterday, today, tomorrow. Today is a new beginning. We must cherish and grasp it. Tomorrow is forever the hope. It is the ultimate goal that can be reached through the sharpening of yesterday and today.