The physical stamina required for this sport is intense but the psychological demands are even more overwhelming.

这项运动需要很强的身体耐力，但对心理上的要求更是压倒性的。

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Competition among youths to enter the best colleges is intense.

青年人进名牌大学的竞争十分激烈。

《新英汉大辞典》

The feeling of confinement is intense.

监禁感是强烈的。

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Many of the world's volcanoes are found at the edges of plates, where geologic activity is intense.

VOA: special.2010.01.12

This is one of the reasons that he writes The Reason of Church Government, this intense sense of obligation that he feels.

他所感受到的那种强烈的责任感，是他写的原因之一。

耶鲁公开课 - 弥尔顿课程节选

I mean, the system is intense. I can't imagine.

我的意思是，那种系统很复杂。我根本无法想象。

学习外语的时候 - SpeakingMax英语口语达人

The scramble for user data is intense across the online and especially mobile space.

FORBES: A Company That Tracks Your Every Move (And Pays You For The Privilege)

Ms. Mattson said she sends fewer samples than ever, and the vetting process is intense.

WSJ: Five Wine Blogs I Really Click With | On Wine by Lettie Teague

However, the competition to provide gateway and application software to wireless carriers is intense.

CNN: Technology - Phone.com and Software.com plan merger to provide unified messaging