我们应当努力奋斗，有所作为。这样，我们就可以说，我们没有虚度年华，并有可能在时间的沙滩上留下我们的足迹。
We should make great efforts and strive to accomplish something, then, we can say we have not wasted our life, and even leave our footmarks on the sandy beach of time.
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