每周六，塔尼都去参加一个3小时的免费课程来提高他的游戏技巧。
Every Saturday, Tani goes to a free 3-hour class to improve his game skills.
在机场的各航空站之间有24小时的免费穿梭巴士。
There is a free 24-hour shuttle between the airport terminals.
最糟糕的是，当她的儿子内德摔坏膝盖时，她拒绝请医生，而且花了几个小时寻找免费的医疗帮助。
Worst of all, when her son, Ned, fell and injured his knee, she refused to pay for a doctor and spent hours looking for free medical help.
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