1. Children under 12 rare half price.
   12岁以下儿童半价。
2. This pass enables me to travel half-price on trains.
   我用这张通行证坐火车半价。
3. All the out-dated magazines are half-price.
   过期杂志一律半价。
4. Student tickets are half price.
   学生票半价。
5. I bought this coat at half-price/at 50% discount.
   我用半价[折]买的这件外衣.

　1个副词解释