全国有些地方实行了公交免费的尝试，但方式各有不同。
In our country, some places have an attempt about free bus, but respectively different.
如果把塑料瓶送到公交车站，人们可以免费乘坐公交车。
People can take buses for free if they give plastic bottles to bus stations.
17条奥运公交专线持票免费乘坐，包括8条普线、9条快线。
The 17 Olympic lines will be free to ticket holders, and are divided into 8 regular lines and 9 express routes.
应用推荐