to hide the truth about something
esconder la verdad sobre algo (ocultar un error o una mala accion.)
"They tried to cover up the mistake."
"Intentaron cubrir el error." (Intentaron cubrir su error cambiando el informe.)
to reach a stage of maturity or full potential
a big and sudden improvement
to reduce the price of something
a person who loves reading books
To do something very risky or dangerous.
Very calm and relaxed.