澳大利亚有些湖泊的生存环境跟古代的火星上的条件一样严酷，但是根据新的DNA显示，在这里不但有生命存活下来，而且生长的很繁盛。
Life not only survives but thrives in Australian lakes where conditions may be as harsh as those on ancient Mars, a new DNA analysis suggests.
更重要的是，大部分生命在此种条件下都不能生存。
What's more, most life cannot survive under such conditions.
据我们所知，生命存在的可能性需要满足众多适合生存的条件。
So much has to fall into place for the conditions for life as we know it to be possible.
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