to stay calm under stress or provocation
mantener la calma bajo estrés o provocación (mantener la calma bajo estres o provocacion)
"Even in emergencies, he always keeps his cool."
"Incluso en emergencias, él siempre mantiene la calma." (Incluso en emergencias, él siempre mantiene la calma.)
to start implementing a plan or idea
getting old
to undergo a significant change or improvement
to contribute something useful or valuable
Using one’s position or power for personal financial gain.
to expand a business rapidly after initial success