To be aware of what is happening around you.
быть в курсе того, что происходит вокруг вас. (byt v kurse togo, chto proiskhodit vokrug vas.)
"If you want to succeed in business, always keep an ear to the ground."
"если вы хотите добиться успеха в бизнесе, всегда держите ухо на земле." (yesli vy khotite dobit'sya uspekha v biznese, vsegda derzhite **ukho na zemle**.)
behind the surface; the underlying mechanism or system
To spend all your time studying
to take on a difficult task without preparation
to give permission or approval to proceed
to not completely believe something
to recover from a setback or failure
