As an important subdiscipline of information hiding, steganography is one of important research fields in recent years.

密写术作为信息隐藏的一个重要分支，是近年来研究的热点领域之一。

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Language learning strategies and the communicative approach are the two popular research fields in applied linguistics in the past 30 years.

语言学习策略和交际教学法是近30年来应用语言学中的两个热门研究领域。

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GMO research and the application of the technology have made considerable progress, and even reached the international advanced level in some research fields.

我国转基因生物技术的研究和应用取得了长足的进步，在一些研究领域甚至达到国际先进水平。

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However, when stem cells are removed, the embryo is destroyed -- which has made this one of the most controversial medical research fields in the past decade.

CNN: FDA approves human embryonic stem cell study

Meanwhile, the drug companies themselves have been dropping or reducing research into fields that once looked promising.

FORBES: Investing For A Backlash Against Psychopharmacology

One is a world-class institution filled with talented researches and clinicians helping disseminate the latest research in many fields.

FORBES: A Film Producer, A Cancer Doctor, And Their Critics