Buy 2 get 1 free意思

"Buy 2 Get 1 Free" is a promotional offer that means if you purchase two items, you will receive a third item for free. This type of offer is commonly used by retailers to encourage customers to buy more products by offering a discount on additional items. The "Buy 2 Get 1 Free" offer is also known as a "three for two" or "mix and match" promotion.