This is, of course, well trodden ground.
Much of the material on changes to the professions - on the downgrading of social work to care management, or the changing nature of probation work - is well trodden ground.
The ground is now well trodden; the essence of the argument has been deployed.
In doing so, he is following a familiar path, well trodden by his predecessor.
I do not want to pilot a path that will become so well trodden as to be absolutely subterranean.
In sand-buffing shops it is not unusual to find the floors caked with resin and dust, well trodden in by the feet of the workmen.
Then we can all stop talking about this very well trodden subject.
There is a sense of déja vu because most of the ground has been well trodden already.
