公、私相对，失去一方另一方也将不在。
Public and private are opposed to each other and one will not exist without the other.
另一方面，英语可能会失去它作为世界通用语的地位，学习英语也将变得没那么重要，但由此将能保护大量各种各样的语种。
On the flipside, English could lose its status as the global lingua franca and the need to learn it will become less relevant, thereby preserving a whole host of other languages.
这样的形势比较严峻，因为每一种语言的灭绝都意味着世界失去了一方无可替代的文化。
That's a perilous state of affairs.With the death of a language, the planet loses an irreplaceable cultural phenomenon.
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