Their eyes met for a split second.

在一刹那间，他们的目光交汇在了一起。

《牛津词典》

Her gaze met Michael's for a split second.

她与迈克尔目光对视了一刹那。

《柯林斯英汉双解大词典》

Every thought that you have affects your body chemistry within a split second.

你的每一个想法都会在瞬间影响你体内的化学反应。

youdao

"Gives a rebel yell and hoot when he does manage to stand up for a split second,drops in on people, collides with people."

VOA: standard.2010.08.04

The trolley car is a runaway thing and you're making a split second choice.

电车已失控，而你必须在那一瞬间做出选择。

耶鲁公开课 - 公正课程节选

So, studies with police officers using reaction time in split-second choices on who to shoot find that your stereotypical attitudes play a huge role in who you're likely to shoot when they're holding an object in their hand that's unclear.

一些针对警察的研究,用霎间的反应时间让他们作出选择,应该向谁开枪，研究发现这些刻板态度,能极大的影响你选择向谁开枪,当他们手里拿着不明物体时。

耶鲁公开课 - 心理学导论课程节选

The result: for a split second, you are living the experience with Thoreau as it happens.

FORBES: A History Book, Tweet by Tweet

In a split second I had to take a decision and I took it.

BBC: Sven Kramer mistake hands 10,000m gold to Korea's Lee

For a split second I thought 'oh no' but he kept calm and his reaction was wonderful.

BBC: Jack Wilshere ready to shine for Arsenal and England