Coupons
来自Big Physics
early 19th century (denoting a detachable portion of a stock certificate): from French, literally ‘piece cut off’, from couper ‘cut’, from Old French colper (see cope1).
early 19th century (denoting a detachable portion of a stock certificate): from French, literally ‘piece cut off’, from couper ‘cut’, from Old French colper (see cope1).