The former state-owned carrier once symbolized the strength of the country's post-war economic boom.

VOA: standard.2010.02.01

All this, of course, was fuelled by I mentioned it already--a transportation revolution symbolized by the Erie Canal, finished in 1825, which remained profitable all the way out into the 1880s.

当然,所有这些都是由于,我已经提过,1825开通的,伊利运河所带来的交通革命所导致的,这条运河直到十九世纪八十年代还在盈利

耶鲁公开课 - 美国内战与重建课程节选