to contact someone by writing or message
ponerse en contacto con alguien por escrito o mensaje (ponerse en contacto kon alguien por eskrito o mensaje)
"Please drop me a line when you arrive."
"Por favor, envíame una línea cuando llegues." (por favor enviame una linea kwando lleges)
to continue hoping even when it seems impossible
a change in leadership or authority
to start working seriously
when a model performs well on training data but poorly on un...
something that makes you feel happy or pleased
Taking an irreversible step with serious consequences.