He looked fleetingly like a small boy caught in wrongdoing.

他看起来就像一个被抓住做错事的顽皮男孩。

" The rocks are exposed to very high pressures and high temperatures, but only fleetingly, " McSween says.

“岩石暴露在非常高的压力和高温下，但只是短暂的，”麦克斯温说。

In between, fleetingly, is the ecstasy of relief.

在两者之间，转瞬即逝，是如释重负的狂喜。

' I wondered fleetingly how often she thought Lily was going to stay.

’我一闪而过地想知道她多久会认为莉莉会留下来。

" American Cartel" delves only fleetingly into the personal stories of opioid victims and their families.

“美国卡特尔”只是短暂地探究了阿片类药物受害者及其家人的个人故事。

For humans and other animals, most of our stem cells exist only fleetingly in embryos before they get used up to make our organs.

对于人类和其他动物来说，我们的大多数干细胞在胚胎中短暂存在，然后被用来形成我们的器官。

I wondered, fleetingly, if that was how I had looked when he'd found me.

我一闪而过地想，当他找到我时，我是不是就是这个样子。

' I called in sick, noting fleetingly that Richard Percival's cold 'I see, ' was actually more ominous than his previous blustering protests.

’我请了病假， 迅速注意到理查德·珀西瓦尔 (Richard Percival) 冷冷的‘我明白了，’实际上比他之前的咆哮抗议更不祥。

You hardcore SciShow News hounds know that new elements are constantly being created -- if fleetingly -- and then tested, and verified, in labs around the world.

铁杆 SciShow 新闻猎犬知道新元素不断被创造——如果稍纵即逝——然后在世界各地的实验室进行测试和验证。

Researchers have been teaching Ayumu a memory task in which a random pattern of numbers appears fleetingly on a touchscreen before being covered by electronic squares.

研究人员一直在教 Ayumu 一项记忆任务，其中随机的数字模式会在触摸屏上短暂出现，然后被电子方块覆盖。