免费入场券

例句：

1. 1. We canget a free admission to the museum onSundays.
   我们周日可以免费参观博物馆。
2. 2. Theconcert is sold out, but there arestill free admission tickets available for the VIPsection.
   音乐会售罄，但VIP区仍有免费入场票。
3. 3. The children were given freeadmission to the zoo because they werecelebrating their birthdays.
   孩子们因为庆祝生日而获得了动物园的免费入场券。