adj. unpriced
misc. beyond price
他对我的帮助是无法估价的。
当然，这是值得尊敬的，他的智慧和经验是无法估价的。
This is admirable, of course, and his wisdom and experience are invaluable.
那么，或许减缓人口增速可以减对轻脆弱环境造成的压力，保护无法估价的资源？
Perhaps, then, slower population growth would reduce the pressure on fragile environments and conserve unpriced resources?
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