"Nothing lives for ever!" However, in this statement we think of artificially produced, technical objects, products which are subjected to natural wear and tear during use.

“没有什么是永远存在的！”然而，在这个陈述中，我们想到的是人工制造的技术性物体和产品，它们在使用过程中受到自然磨损。

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It is a natural wear and tear of our joint cartilage.

这是自然的磨损和撕裂的关节软骨。

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The warranty does not cover natural wear and tear and damage arising from improper use.

该质量保证不包括自然磨损和破裂以及由不正当使用引起的损坏。

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One reason is the natural wear and tear of being the main party in office.

ECONOMIST: Chile

The statues survived the ravages of Mongolian conqueror and warrior Genghis Khan, centuries of wars and the natural wear and tear of the elements.

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Again, this is an instance in which years of under-investment and natural wear and tear on building equipment may be reversed through this fast-expiring tax program.

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