That study dates from 1999, and liposuction's defenders would argue the procedure is better and safer now than it ever was.

该研究始于1999年，赞同吸脂术的人会说该手术现在要比以前更好更安全。

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A study... has revealed that nearby caves store the dates of past earthquakes in stone.

该研究揭示出，临近的山洞保存了过去刻画在石头上的地震发生日期。

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In a study in the March 20th issue of the journal Science, researchers at Harvard had undergraduates go on five-minute speed dates.

在3月20日发表于《科学》(Science)杂志上的一项研究中，来自哈佛大学的研究者们让一些大学生们进行5分钟的“闪电”约会。

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The study also suggests Flame dates back to 2006, much earlier than previously thought.

BBC: More malware targeting Iran could yet be discovered

Stem-cell research dates to 1981 and started out with mouse embryos, which researchers used to study the effects of individual genes and to try treating disease in mice.

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Ms Pillay said an "exhaustive" study of all deaths between 15 March 2011 and 30 November 2012 showed 59, 648 had been killed between those dates.

BBC: Syria: Deadly air strike 'hits Damascus petrol station'