Translation of "Rails" in Spanish

The hero of the book rails at the injustices of the world but does nothing about them.

El héroe del libro se queja de las injusticias del mundo pero hace nada acerca de ellas.

Mary sniffed rails of coke to forget that during this time, Tom, her husband, cheated on her.

Mary se mete rayas de coca para olvidar que, mientras tanto, Tom, su marido, la engaña.

- Underground and overground trains as well as trams travel on tracks.
- Underground and overground trains as well as trams travel on rails.
- The metro, trains and trams travel on rails.
- The metro, trains and trams travel on tracks.

El metro, los trenes y el tranvía circulan por vías.