This untutored mathematician had an obsession with numbers.

这位未接受过正式教育的数学家对数字十分痴迷。

《柯林斯英汉双解大词典》

Fitness has become an obsession with him.

他迷上了健身。

《牛津词典》

An obsession with time, saving, gaming, wasting, losing and mastering it, seems to have been a part of humanity for as long as humans have existed.

人类对时间的执念——对其的节省、玩弄、浪费、丧失及掌控——似乎是人性的一部分，人类存在了多久，执念就存在了多久。

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And second: how do we stabilize the loading equipment aboard the vessel?" An institute exhibition displays the project's obsession with stability.

VOA: standard.2010.01.04

Eight features of literary modernism: An obsession with the idea of art's autonomy, the idea that art is its own law, that it responds to no other laws, that it has no other purpose than its own purposes.

第一，对艺术意志自由问题的困扰,对艺术是自身的法律，它不响应其他准则,它只有本身这唯一的目的，也就是说。

耶鲁公开课 - 1945年后的美国小说课程节选

This worldview had, of course, an obsession with stability.

这个世界观太执着于稳定性

耶鲁公开课 - 美国内战与重建课程节选

She then turned a full 180 degrees and developed an obsession with simple nude nails.

WSJ: The Art of the Nude Manicure

Most companies with such cultures were founded by people who had an obsession with data.

FORBES: Curing the Big Data Storage Fetish

In the short run an obsession with austerity could make matters worse by deepening recession.

ECONOMIST: The EU summit