the relationship between the amount of money that a company owes (debt) and the value of its shares ( equity) 债务杠杆比率（公司债务与其股票价值之间的关系）◆The subsidiary has received $4.5 billion to help reduce its debt leverage. 这子公司已收到 45 亿元以协助其降低债务杠杆比率。
using borrowed money to buy an investment or to add to the amount invested, in order to try to increase possible profits from the investment 债务杠杆（借款投资或增加投资额以扩大利润）