uphill

batalla cuesta arriba

Refers to a very difficult struggle where success is not certain.

Se refiere a una lucha muy difícil donde el éxito no es seguro.

A long and difficult effort to achieve something.

A very difficult piece of work that needs to be done.

lucha cuesta arriba

A difficult contest or effort against strong opposition.

Un concurso o esfuerzo difícil contra una fuerte oposición.

A steep ascent, either literally on a hill or metaphorically representing a difficult process.

final en subida

The final part of a race or competition that is on an upward slope, making it more difficult.

La parte final de una carrera o competición que se encuentra en una pendiente ascendente, lo que la hace más difícil.

A surface of which one end is at a higher level than another.

A technical term for an upward slope, especially for roads or railways.