Значение идиомы trading stamp

[trading stamp] {n.} One of the stamps that you get because you buy something there; a stamp you getwith a purchase and save in special books until you have enough totake to a special store and trade for something you want.

Motheralways buys things in stores where they give trading stamps.



Плюсы и минусы гмо на английском.
My native town topic с переводом.


Значение идиомы trading stamp