VOA慢速英语:全球四分之一的人面临缺水风险

water stress – n. when the demand for water exceeds the available amount during a period or when poor quality restricts use

global – adj. involving the entire world

reservoir – n. a usually manmade lake that is used to store a large supply of water for use in people's homes and in businesses

manage – v. to have control of something, such as a business, department, sports team