lost ground
A portion of a lead or advantage that has been subsequently lostA portion of a lead or advantage that has been subsequently lost.
Значение
значений: 1(неисчисляемое)A portion of a lead or advantage that has been subsequently lost.
Уроки к слову
уроков: 1- A1Исчисляемые и неисчисляемые существительные — Потому что оно может быть неисчисляемым