to flatter someone to gain favor
adular a alguien para ganarse su favor (adular a alguien para ganarse su favor)
"He’s trying to butter up the boss for a promotion."
"Está intentando adular al jefe para conseguir un ascenso." (esta intentando adular al jefe para conseguir un ascenso)
to improve by learning from past failures
a small visible part of a much larger problem
being kind doesn’t take effort or money
to ignore a problem hoping it will go away
to make a small mistake
to promise solemnly, often in a formal way