The mere existence of such a civilisation will tell us that long-term survival is possible, and gives us some cause for optimism.

这样一种文明的存在本身就会告诉我们，长期生存是可能的，并给我们一些乐观的理由。

youdao

Yet it also raises questions about the long-term survival of many of these companies.

很多这种私有企业的长期生存问题也受到了质疑。

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For both companies, the potential deal is a defensive move aimed at long-term survival.

对双方来说，这样一项交易将是着眼于长期生存的防御性策略。

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An analysis of four studies found no difference in short-term survival when rescuers followed current guidelines.

VOA: special.2010.09.15

An RAF spokesman said the multi-million pound investment further secured "its long term survival".

BBC: Millions invested in training at RAF St Mawgan

Even if Greece can be salvaged, attention is turning to the long-term survival of the euro.

ECONOMIST: Charlemagne

The building is said to be in poor condition and needs extensive upgrading to ensure its long-term survival.

BBC: Dumfries Theatre Royal fund package seeks support