柯林斯词典prop up (propping,propped,props) 1. PHRASAL VERB To prop up something means to support it or help it to survive. 支撐; 維持 Investments in the U.S. money market have propped up the American dollar. 對美國貨幣市場的投資一直在支撐著美元。2. →see prop 返回 prop up