to be involved in something too difficult to handle
in etwas verwickelt sein, das zu schwierig ist zu bewältigen (in etvas verwikelt zain das tsu shverig ist tsu beveltigen)
"He’s in over his head with this complex project."
"Er steckt über beide Ohren in diesem komplexen Projekt." (er shtekt uber beide ohren in diesem komplexen projekt)
to help someone remember something
to delay doing something
to have a strong desire to learn or gain more knowledge
assistance or support
to do what one has promised to do
to aim for something very ambitious or difficult to achieve