let down
US /let daʊn/
UK /let daʊn/

1.
decepcionar, fallar
to disappoint someone by failing to do what they expect or hope
:
•
I promised to help him, and I don't want to let him down.
Prometí ayudarlo y no quiero decepcionarlo.
•
She felt completely let down by her friends.
Se sintió completamente decepcionada por sus amigos.
2.
bajar, soltar
to lower something or allow it to fall
:
•
Can you let down the blinds, please? The sun is too bright.
¿Puedes bajar las persianas, por favor? El sol es demasiado brillante.
•
She decided to let down her hair after the formal event.
Decidió soltarse el pelo después del evento formal.