to help someone in trouble
ayudar a alguien en apuros (ayudar a alguien en apuros)
"A firefighter came to the rescue of the trapped cat."
"Un bombero vino al rescate del gato atrapado." (un bombero **vino al rescate** del gato atrapado)
to see a small sign of improvement in a bad situation
to watch for something or someone carefully
to wait patiently for the right moment
To begin to understand something.
Don’t lose hope until the end.
to have the opposite result of what was intended