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IELTS BNC: 10703 COCA: 11633

depletion

noun
/dɪˈpliːʃn/
/dɪˈpliːʃn/
[uncountable, countable] (formal)
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  1. the reduction of something by a large amount so that there is not enough left某物大量减少以致没有足够的剩余
    • The greatest ozone depletion occurred near the poles.最大的臭氧消耗发生在两极附近。
    • the depletion of fish stocks鱼类存量锐减

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