除地球以外，火星是唯一的另一个存在表层水的行星。 为此，科学家正在那里寻找生命的迹象。

Mars is the only other planet that once had water on its surface – which is why scientists are looking for signs of life there.

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execute方法处理JSF请求处理生命周期中除最后一个阶段(render Response)之外的每个阶段，最后的这个阶段由render方法执行。

The execute method handles all phases of the JSF request processing life cycle, except the last one (named render Response), which is executed by the render method.

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这是一个釜底抽薪的方法，类似于为了挽救病人生命而截除坏疽的肢体。

I felt this was a drastic measure, akin to amputating a gangrenous limb to save a patient's life.

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