xiāo​shēng​nì​jì

lie low

销声匿迹 (銷聲匿跡) xiāo​shēng​nì​jì
lie low idiom
to go into hiding or keep a low profile to avoid detection or attention

To evade police pursuit, the criminal gang vanished without a trace for a whole year.

vanish idiom
to disappear completely from public view or cease to be active or present

Over time, this ancient tradition has disappeared.

Frequency

Movie subtitles
1.25 per million appears in 1% of films
Written text
1.44 per million

Sources

Definitions
CC-CEDICT