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1·They picked out a 10-pound Turkey and two frozen, buy-one-get-one-free pies at the supermarket.

他们在超市挑选了一个10磅重的火鸡和2个冷冻的买一送一的馅饼。

2·If you buy two, you can get a premium of one, free.

如果你买两个，可以另外赠送一个。

3·Perhaps you can buy one bottle of shampoo and get one free. The price of shampoo has fallen by 50 per cent but you spend the same and get two bottles.

比如说洗发水买一赠一，也就是说洗发水的价格降低了50%，或者说用同样的价格购买了两瓶。

4·What's more, the one who buy two or more phones will get bluetooth earphones for free.

一次性购买两台或两台以上手机的朋友更可获赠高档蓝牙耳机。