This is a great improvement on your previous work.

你的工作比先前有很大进步。

《牛津词典》

Previous studies on CSR have had trouble differentiating these effects because consumers can be affected by all three.

以前关于企业社会责任的研究在区分这些影响时遇到了困难，因为消费者可能会同时受到这三种影响。

youdao

James Burke of Duke University is one of the authors of a study reviewing previous research on cognitive decline.

杜克大学的詹姆斯·伯克是一项研究的作者之一，该研究回顾了此前有关认知能力下降的研究。

youdao

James Burke of Duke University is one of the authors of a study reviewing previous research on cognitive decline.

VOA: standard.2010.06.17

We can make some substitutions here using some of the derivation on the previous board which will give us the Planck constant divided by 2 pi mass of the electron times the Bohr radius.

在这里我们也可以,用我以前在黑板上写过的一些词来取代它,得到的是普朗克常数除以2π电子质量,再乘以波尔半径。

麻省理工公开课 - 固态化学导论课程节选

And on top of that, my previous appointment ended a little late.

另外，我之前的约会结束得稍晚了一些。

I'm going实战 - SpeakingMax英语口语达人

Previous on-chip nanofocusing devices were only able to focus light into a narrow line, making them inefficient, whereas Caltech's contraption can be focused in three dimensions, producing a point a few nanometers across, and using half of the light that's sent through.

ENGADGET: Caltech invention focuses light like never before, could bolster next-gen communication platforms

This was not unexpected based on previous research on mice and monkeys, he added.

FORBES: Nuclear Transfer Breakthrough Offers A Way To Prevent Mitochondrial Disorders

But he also notes that, unlike some previous years, companies are on track with previous historical experience on finalizing their IT budgets for this year.

FORBES: Cognizant Slips Despite Strong Q4; 2011 View Tops Street Estimates