高中劝学原文：

珍惜时间，珍惜机会，珍惜每一分每一秒。高中是人生中最为重要的时期之一，是人生的转折点。在这个时期里，我们要好好地把握自己的时间，珍惜每一次机会，认真学习每一门功课。只有这样，我们才能在未来的道路上走得更加顺畅。加油，我们一起努力吧！

翻译：

We should cherish time, opportunities, and every minute and second. High school is one of the most important periods in our lives and a turning point in our lives. In this period, we should grasp our time, cherish every opportunity, and study each subject seriously. Only in this way can we walk more smoothly on the future road. Let's work hard together!