mindmap root((耗尽)) deplete implies a reduction in number or quantity and the actual or potential harm done by such a reduction: we cannot afford to ~ our natural resources. drain implies a gradual withdrawl and ultimate deprivation of what is necessary to a thing's existence and functioning: a series of personal tragedies ~ed him of hope. exhaust stresses a complete emptying or using up: a theme that can never be ~ed. impoverish suggests a deprivation of something essential to vigorous well-being : without the arts we would lead an ~ed existence. bankrupt suggests impoverishment to the point of imminent collapse: war has ~ed the nation of manpower and resources.