This is why repeated attempts at reform legislation have failed in recent years, leaving the Postal Service unable to pay its bills except by deferring vital modernization. (2018年 英语一 Text4)
【难点分析】本句为复合句。主句是This is+表语从句,leaving the ... modernization是现在分词做结果状语,修饰前面的分句,即repeated attempts at reform legislation have failed in recent years,结果状语中,leave sb. unable to do sth.意为“使得某人无力做某事”。
【参考译文】这也是为什么近年来立法改革屡次失败的原因,使得邮政局无力支付各种账单,只能推迟至关重要的现代化改革。