Soon the wearer of a virtual reality headset will be able to be "present" at sporting or theatrical events staged thousands of miles away.

要不了多久，头戴虚拟现实视图器的人将能够“现场观看”几千英里之外举行的体育赛事或剧场演出。

《柯林斯英汉双解大词典》

Students should be encouraged to present their own opinions, whether right or wrong.

应该鼓励学生提出自己的观点，无论观点对错与否。

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It isn't a school subject or an academic discipline, but it can be learned; It is a quality that is required of artists, but it is also present in the lives of scientists and entrepreneurs.

它不是一门学校的科目或学术学科，但它是可习得的；这是艺术家必须具备的品质，但它也存在于科学家和企业家的生活中。

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Or patients might be advised to think less about the past and more about the present and the future.

VOA: special.2010.04.13

So can be changed slightly, depending on tense, past, present or future as well as whether or not you want to ask a question.

因此这个句型要根据不同的时态，如过去时、现在时和将来时，作出一点调整；另外也会根据是否是问句而略有不同。

There is 课堂 - SpeakingMax英语口语达人

because that sarcastic undertone may or may not be present depending on how it's used.

因为话中是否有挖苦的意思，还得看这句型是如何使用的。

Do you ever课堂 - SpeakingMax英语口语达人

On a piece of DNA as long as the one made for Microbia, ten or more genes may be present.

FORBES: The Biggest DNA Ever Made

My Surround mode delivers surround sound to even the most difficult installation environments where walls may not be present or are covered with unsuitable materials.

ENGADGET: Yamaha intros YSP-3050 Digital Sound Projector

The reason for this stems back to the Public Order Act of 1986, which states that a riot is an activity during which 12 or more persons must be present together and use and threaten unlawful violence for a common purpose.

FORBES: Who Pays for the English Riots Again