The roads to the festival site were choked with cars backed up for over 100 kilometers in all directions.

VOA: standard.2009.08.15

And Rutherford, who I have already described to you as being a little bit colorful in his language, backed up Bohr on this.

而卢瑟福，就是以前我跟你们提过的那个,语言丰富生动的人，在这一点上证实了波尔的理论。

麻省理工公开课 - 固态化学导论课程节选

We're talking about like, if you didn't, even if you had all your data on your computer backed up on hard drive,

如果你没有将你电脑里的数据备份到硬盘里，

没有智能手机活不了 - SpeakingMax英语口语达人

The incursion was backed up by helicopter gunships and fighter jets.

VOA: standard.2010.06.17

Now we've backed up to here.

现在我们回到这里。

麻省理工公开课 - 计算机科学及编程导论课程节选

The crowd outside the courthouse watched anxiously as one by one, each with a canvas-covered bed, backed up to a courtroom door and, out of the view of onlookers, deposited handcuffed defendants for a brief appearance before a judge.

VOA: standard.2009.05.25

Ralph Waldo Emerson: "All history is a record of the power of minorities, and of minorities of one, "-- a lot to backed that up in social science research.

爱默生说：,“人类历史是少数派，和一个人的少数派的权力记录，很多社会科学研究支持这个观点。

哈佛公开课 - 幸福课课程节选

Smoking a cigarette outside Science Po's library one evening, said she backed the government's push for other grandes ecoles to open up.

VOA: standard.2010.02.02

Then the first time so he came up a major third there and then quickly backed off with just a half step below it, which completely gave it a different feel.

于是开始的时候,乐曲中出现一个大三和弦,然后快速地降低了半个音,这种变化给人完全不同的感受

耶鲁公开课 - 聆听音乐课程节选

The central bank also announced that it would purchase up to $750 billion of additional mortgage-backed securities, which lost value with the collapse of the U.S.housing market.

VOA: standard.2009.03.18

The U.N.-backed Electoral Complaints Commission may end up putting into quarantine hundreds of thousands of ballots until the major allegations stemming from the August 20 election are resolved.

VOA: standard.2009.09.12