This is the 9872nd most frequent Portuguese word.
desembarca
"Desembarca" means "disembarks" or "gets off."
Here 'desembarca' is used to mean 'disembarks,' indicating that Maria is leaving or stepping off the train upon arrival at the station.
Maria desembarca do trem na estação central.
Maria disembarks from the train at the central station.
In this sentence, 'desembarca' refers to the action of the ship facilitating the passengers to leave its premises onto the port.
O navio desembarca os passageiros no porto seguro.
The ship disembarks the passengers at the safe port.
When applied here, 'desembarca' is used in the sense of 'unloads,' referring to Pedro removing his bags from the transportation vehicle.