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Research your topic and learn as much background information as you can.

研究你的选题，尽可能多的收集背景资料。

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But enough necessary background information. The best way to get a feel for Harlow's research is to hear about it from the man himself.

背景信息已经足够多了，了解这个实验的最佳方法是听听本人什么说。

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The political research unit provides background information and reliable statistics on parties, policies and polling, producing indispensable election guides which are studied and treasured by politics geeks and other staff across the corporation.

BBC: This is BBC News