unnoticed or undetected
незамеченный или не обнаруженный (nezamechenniy ili ne obnaruzhenniy)
"He stayed under the radar during the investigation."
"Он оставался незаметным в ходе расследования." (On ostalsya nezametnym v khode rassledovaniya.)
to make the right decisions in order to achieve a good resul...
to focus and work hard for a long time
to sacrifice for the benefit of others
to do something correctly after making a mistake
in written form; clearly stated
to help someone in trouble