drop by the wayside

• No poder continuar con una tarea o esfuerzo, quedarse atrás o ser abandonado mientras otros avanzan o tienen éxito.

To fail to continue in an endeavor, be left behind, or become abandoned as others progress or succeed.

1. B2informal

   To fail to continue with a task, activity, or journey; to give up or be left behind.

   quedarse en el camino

   • Many students started the course, but some dropped by the wayside.
   • The project was ambitious, but several team members dropped by the wayside.
   • He began training for the marathon but dropped by the wayside after a few weeks.