depletion
noun [ S or U ] uk/dɪˈpliː.ʃən/ us/dɪˈpliː.ʃən/
减少；减小；缩小
a reduction in something
the depletion of the ozone layer 臭氧层的变薄
Increased expenditure has caused a depletion in our capital/funds. 开支增加使我们的资本／资金减少了。
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