depletionn.
英 dɪ'pliːʃn | 美 dɪ'pliʃən
中文n. 消耗；损耗；放血
词根词源
depletion (n.)1650s, from Late Latin depletionem (nominative depletio) "blood-letting," noun of action from past participle stem of Latin deplere "to empty," literally "to un-fill," from de- "off, away" (see de-) + plere "to fill" (see pleio-).
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