You have to know your topic inside and out.
你需要彻底弄清你的主题。
To be a good presenter you need to be engaging with the audience and know your topic.
为了成为一个优秀的演讲者，你需要让观众了解你的主题。
When the lights go down and the spotlight is on you, no matter how much you know your topic, conveying the information suddenly seems daunting.
当所有灯光关掉，聚光灯对准你时，突然要演讲了，无论你对你的主题有多了解，此时总会令你有些怯步。
What do they know about your topic?
关于你的主题他们了解多少？
You need your listener to know that you are qualified to stand there and tackle the topic.
你得让你的听众明白：你有资格站在这里阐述这个话题。
If your website offers something of worth, valuable to web users interested in that topic, then it behooves you to let the world know about it.
如果你的网站在上网用户感兴趣的主题上给他们提供了有价值的东西，那你有必要让全世界都知道。
Pick a topic that you know about so that you will be able to inject a little charisma into your speech.
挑选一个你了熟悉的话题,这样你的演讲就有了稍稍的吸引力。
If you want to know about a topic for that year only and not any other year, type "inurl: 2009" and your keyword to find results with your keyword in URLs with 2009 in them.
如果你想了解仅仅存在于某年而非其他年份的一个课题，键入“inurl： 2009”和关键词，你将找到包含你的关键词和2009的url。
Your article will appear biased, and you will appear as though you know nothing about your topic.
你的文章会出现偏见，你会好像你不知道你的话题。
Rehearse your response: If you know you tend to be emotional about a certain topic, then keep rehearsing your answer.
提前练习回答：如果你知道你在某一话题上容易感情用事，那么就提前练习回答。
The solution is to make sure you "know what you know". Focus on the common topics that appear regularly, not the strange topic that your friend found on a website.
解决办法就是你要清楚地掌握你已经知道的，关注在经常考的高频考题上，而不是你朋友从网上找到的奇怪的题目。
If you see something you know your colleague will absolutely love, a book about a topic in which he's interested for example, get it for him.
如果你看到了同事肯定喜欢的东西，比如一本讲述了对方钟爱话题的书籍，那就带给对方吧。
The scientific literature is so huge at this point, that it's really impossible to get through, you know, everything in your topic area.
如今科学文献浩如烟海，你也不可能通读专业领域内的所有文献。
The scientific literature is so huge at this point, that it's really impossible to get through, you know, everything in your topic area.
如今科学文献浩如烟海，你也不可能通读专业领域内的所有文献。
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