transfer

Transfer to Line 4 at the central station and ride for three stops.在中央车站换乘4号线，坐三站。

Transfers between bus and metro are now free within a 90-minute window, thanks to the new integrated ticketing system.得益于全新的综合票务系统，在90分钟的时间窗口内，公交车与地铁之间的换乘现在是免费的。