free punch

例句：

1. 1.He gave me a free punch as a thank you for helping him with his homework.
   他给我一个免费的礼物作为感谢我帮他做作业。
2. 2.The store is giving out free punches to customers who spend over $50.
   这家商店正在向消费超过50美元的顾客提供免费饮料。
3. 3.I received a free punch as a reward for completing the course.
   我完成了课程后收到了一份免费礼物。