这是现今火星的艺术概念图-一个贫瘠，冰冷，荒芜的世界。
This is an artist's concept of present-day Mars - a barren, cold, desert world.
这是一个白色的冰冷世界。但是，每年在这里都会有一场火热的约会。
This is a frozen world covered in thick snow. Despite the intense cold, every year emperor penguins still come here for a heart-warming appointment.
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