They approach, embrace, and poof! they disappear in a blinding flash of light.

他们走近、拥抱，然后，噗--他们就在一道炫目的光亮中消失了。

《柯林斯英汉双解大词典》

Organizing a "flash mob" basically involves e-mailing a bunch of people with instructions to show up at a certain place for a few moments, then disappear.

组织一次“快闪”活动，基本上只需要用电子邮件通知一群人在某个地点出现一会儿，然后消失。

youdao

Organizing a "flash mob" basically involves emailing a bunch of people with instructions to show up at a certain place for a few moments, then disappear.

组织一次“快闪”活动，基本上只需要用电子邮件通知一群人在某个地点出现一会儿，然后消失。

youdao

The uDrove Humanitarian Bowl: Northern Illinois will take on Fresno State in the battle of a bowl sponsored by a mobile phone app that makes truck-driving paperwork disappear in a flash.

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