銷聲匿跡

to sell; to cancel or annul; to melt metal; to expend or spend; to relieve or vent feelings; to wear away or destroy

Sound; voice; noise; tone; music; speech; reputation; news; classifier for sounds or utterances.

To hide oneself; to conceal; to go into hiding; to secrete (a substance).

A trace or mark left behind; a vestige or clue; a footprint; a legacy or achievement; to investigate or follow.