If 20mV is applied as input to the series negative clipper,how the clipped part be restored?

Edited Question:

If 20V is applied as input to a series negative clipper,CAN the clipped part be restored?
If yes , how can the clipped part be restored?

 

Show a schematic or add a better description of what you are asking.

 

20mV won't be enough to forward bias the diode.