I believe it is useful to look at what lies behind this achievement and what it promises for the future.
我认为，了解促成这种成就的因素以及对今后的影响将是有用的。
I believe IT pros experienced in the area in which they are testing do not (although a course is always useful).
我认为在需要进行认证的领域有丰富经验的IT专业人员没有必要参加(尽管参加这些课程十分有用)。
While it is true that some advertisements do provide useful information about new products, I believe that their primary effect is to encourage people to buy things that they don't really need.
虽然某些广告的确提供了关于新产品的有用资讯，但我认为，它们的主要功用就是鼓励大家去买一些不是真的很需要的东西。
I believe that recognizing this and working with it as the most basic guideline is essential to producing useful tactical material.
我认为只有精选出那些基本的准则，才能提炼出有价值的内容。
I believe that recognizing this and working with it as the most basic guideline is essential to producing useful tactical material.
我认为只有精选出那些基本的准则，才能提炼出有价值的内容。
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