New public opinion polls show the president's approval rating at its lowest point since he took office.

新的民意测验表明总统的支持率处在他就职以来的最低点。

《柯林斯英汉双解大词典》

However, crime in Houston is at its lowest level in almost 40 years.

而如今，休斯顿的犯罪率降至近四十年来的最低点。

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Official statistics have shown that consumer confidence is at its lowest for 28 years.

官方统计显示，消费者信心达到了28年来的最低点。

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September is the month when the sea ice extent is at its lowest.

VOA: special.2009.10.27

At some point you're going to hit a well here, which is the point where it's most stabilized or at its lowest energy.

直到某一时刻，你会到达这个势阱，也就是体系最稳定,或者说能量最低的位置。

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While violence in Iraq continues to be at its lowest level in years, the president made a reference to problems, saying terrorists continue to try to derail progress.

VOA: standard.2010.08.02

The unemployment rate is now at its lowest level in four years, at 7.5%.

BBC: US stocks surge on strong job creation in April

It's now at its lowest rate, as a share of the population, since 1991.

BBC: A different kind of jobs market

Mr MacAskill added that overall crime was at its lowest rate for 35 years.

BBC: Homicide rate in Scotland increases by 19%