to hide evidence of one’s actions
自分の行動の証拠を隠す (jibun no kōdō no shōko o kakusu)
"Hackers often cover their tracks after breaking into systems."
"ハッカーはシステムに侵入した後、よく自分の足跡を隠す。" (Hakkā wa shisutemu ni shin'nyū shita ato, yoku **jibun no ashiato o kasu**.)
used when expressing a sincere or frank opinion
to be so worried or upset that you don't know what to do
the complete and unvarnished truth
to improve one’s skill or knowledge
something sounds familiar
to avoid taking sides or making a decision
