单词	unsustainable
释义	unsustainable /ʌnsəˈsteɪnəb(ə)l / adjective 1Not able to be maintained at the current rate or level: macroeconomic instability led to an unsustainable boom... "Many sectors need investment, but the current growth rate is unsustainable. Given Wednesday's government figures showing an increase in house repossessions, the signs suggest that current price levels are unsustainable, experts warned. Now he is urging further government intervention to push housing prices to still more absurdly unsustainable levels. 1.1 Ecology Upsetting the ecological balance by depleting natural resources: unsustainable fishing practices... Scientists attribute the declines to pollution, habitat degradation, and unsustainable fishing practices that allow species to be harvested faster than they can reproduce. At the same time, the country's fragile economy, based on unsustainable exploitation of natural resources, has imploded. It pledges to end unsustainable fishing by 2015, where possible. 2Not able to be upheld or defended: both remarks are unsustainable... No one likes admitting that they were wrong, least of all military personnel, but there comes a point when retreat can be more honourable than defending an unsustainable position. In that respect we find that the Adjudicator's determination is unsustainable and cannot be upheld. Black Wednesday followed two months later, when the tension between the need for lower interest rates to stimulate demand and for higher interest rates to defend the pound became unsustainable. Derivatives unsustainably adverb ... As the supply of lumber-grade BC trees dwindles due to unsustainably high levels of harvesting by forest companies, residents of BC lumber towns hoped that free-market dynamics would slow the rate of cutting but keep the prices climbing. America's trade deficit has passed the 5% of GDP that most economists feel is unsustainably high, and is headed to 6%, in part because the import bill has been swollen by high oil prices. This dependence produced parasitic governments which irresponsibly and unsustainably sold the vast national resources to the highest international bidder while heavily relying on those gains to run the country.
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