He vanished without trace.

他消失得无影无踪。

《牛津词典》

He vanished after you fixed him with a job.

你给他安排了一个工作后他就消失了。

《柯林斯英汉双解大词典》

He vanished out of sight.

他消失在视野之外。

youdao

(MOIVE SOUND) Marshal Teddy Daniels enters this shadowy world because one of the patients (although he keeps calling them 'prisoners') has mysteriously vanished.

VOA: standard.2010.02.27

He vanished when he stepped outside during a break in the discussions, she said.

BBC: US concern over Russian activist's detention in Kiev

Sanford was a rising Republican political star before he vanished from South Carolina for five days in 2009.

NPR: SC's Ex-Gov. Sanford Clears Hurdle In Comeback Bid

Joel Kitchen, of Brightlingsea, Essex, was 26 when he vanished in a cloud in a remote area in India in 2002.

BBC: GPS plea to paragliders after Joel Kitchen Himalayas death