如果“它们”存在——本文的前提是假设它们确实存在——那么到底有多少外星文明，能让我们期待与之相遇呢？

If "they" are out there — and for the purpose of this article let's assume they are — then how many alien civilizations can we expect to come across?

youdao

不过，当你听到失败其实并不存在时，你会为之振奋- - - - - -除非你认为失败真的存在。在字典中，失败有好几种定义。

However, you may be surprised to know that failure doesn't exist - until you say it does. In the dictionary, failure has several definitions.

youdao

他们发现了在他们检查的罹患胶质母细胞瘤的病人当中有超过百分之九十的人的肿瘤中存在巨细胞病毒，但这种病毒并不存在于正常的脑组织或者是非恶性的脑肿瘤中。

They discovered cytomegalovirus in the tumours of more than 90% of those people with glioblastoma whom they examined, but not in healthy brain tissue, nor in non-malignant brain tumours.

youdao

So in this context, the river of oblivion serves an obvious purpose in the context we have here in Book Two.

故在这部分文本中，遗忘之河便是为了遗忘而存在的,在第二册书正是这样体现的。

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And one can see how those two things might conflict at some point, and one typically prevails over the other.

你们会看到,这两件事存在矛盾之处,一件对另一件有着典型影响

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There seems to be in existence from the beginning of creation this universal moral law, and that is: the God-endowed sanctity of human life.

这个道德准则似乎在,创始之初就存在，它是指：,上帝使人类具有神圣性。

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