Definition of top grade:
°an improved component or replacement item, usually applied to technology.
°to improve, usually applied to technology, generally by complete replacement of one or more components.
°to replace an existing object with something better.
Definition of top grade:
°an improved component or replacement item, usually applied to technology.
°to improve, usually applied to technology, generally by complete replacement of one or more components.
°to replace an existing object with something better.