Now he would have to deal with the problems that presidents before him had not been able to solve.

VOA: special.2009.05.07

And he says of his own writing, "I had tried to convey something of what it felt like to be a Negro, and no one had been able to listen.

作者自己也这小说里写道：“我曾试着去和身边人,传达那种我想成为黑人的强烈感觉，但没人能听进去。

耶鲁公开课 - 1945年后的美国小说课程节选

had been able to talk to the person next to her whose name is? Erica.

她跟旁边的男生约好,他叫,艾瑞克

耶鲁公开课 - 博弈论课程节选

"As the years passed, most Americans were able to return to life much as it had been before 9/11.

VOA: special.2009.01.17

We saw that the Bohr model was able to correlate the observations of Angstrom, which had been formulated by Balmer.

知道了波尔模型,可以和阿姆斯特朗的观察相吻合，这观察后来被巴尔末推导出来相证实。

麻省理工公开课 - 固态化学导论课程节选

Kevlar might not have been invented had Stephanie Kwolek been able to seek a career in medicine.

VOA: special.2010.02.09

As far as I know -- I know of no exception, although someone may well be able to produce one no original poem in English had ever been published with line numbers in the margin in its very first printing.

就我所知，无一例外，尽管有些人能很好的制作出摹本,但英语原版诗歌从不在首次印刷的时候,把行数印在页边空白处。

耶鲁公开课 - 弥尔顿课程节选

But they did something that the Mercury astronauts had not been able to do.

VOA: special.2009.06.24

He throws his high prophetic talents into the construction ; of the Saint Peter speech; and in 1645, historical circumstances being what they were, he was able to look back at this passage and actually claim that it had been a genuinely prophetic utterance.

他把自己预示的才能投入在,圣彼得的演说之中;,在164年，历史背景如此复杂，他能够重新回顾这段,并且做出一段真诚的预知性的论调。

耶鲁公开课 - 弥尔顿课程节选

Grant had never been able to make much money.

VOA: special.2010.02.11

"Some people have had these for 15 or 20 years and never been able to get one to bloom, so we are really lucky here to have one."

VOA: standard.2010.07.30

She says,'we went to visit, but have not been able to see our relatives.' She said relatives had only been allowed to drop off food at the gate and leave.

VOA: standard.2009.05.25

Now that the civil war in Sri Lanka is over, he says aid workers are finally able to reach some areas in the northern Tamil region that had been off limits.

VOA: standard.2009.12.26

Hill says when police raid a brothel, if they've had the right training, they will be able to tell when a woman is willingly committing a crime or has been forced into prostitution.

VOA: standard.2010.07.23

He has had a bad summer. His numbers are down, health care is in peril and he has not been able to work his will on his own party, much less the opposition Republicans."

VOA: standard.2009.09.02