to try to understand something that is confusing
tratar de entender algo que es confuso (tratar de entender algo que es confuso)
"He puzzled over the strange message all night."
"Él pasó toda la noche tratando de entender el mensaje extraño." (Él pasó toda la noche tratando de entender el mensaje extraño.)
to face challenges bravely and stay positive
to ensure work stays within schedule and scope
to defend or support someone’s rights or opinions
to spend only as much money as you earn
to feel a great amount of pride and happiness
to introduce new methods gradually