今天我们要学的词是 backlog. Backlog 作为名词，有积压的意思。A latest report says the backlog at the U.S. Citizenship and Immigration Services has skyrocketed 1400 percent since 2011. 最新报告显示，美国移民局的积压案件自2011年以来猛增了14倍。The Department of Justice plans to hire at least 500 prosecutors to handle a backlog of over 10,000 cases. 美国司法部准备招聘至少五百位检察官，处理一万多个被积压的案件。好的，我们今天学习的词是 backlog, backlog, backlog...