回答和翻译如下：
第二个半价。
Second half price.你好!
第二个半价
Second half pricebuy one get one half off 买一个，第二个半价The second is half price. 个
= The second is sold at half price. = The second is given a 50% discount.
= The second is sold at a discount of 50%. = The second is discounted as much as 50%.half for second.