10 min advance for buses, you must know the route quite well. Because buses do not stop at every bus stops. You need to know where you want to get off and press the button to notice the driver 1 stop in advance
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半年前 来自穷游
提前个10分钟就可以了。 bus有夜间车的,如果你凌晨出发可以坐夜间车,eg.N74. 跨区的肯定有,但是不知道你是要从哪儿到哪儿??? 或者你可以看看你附近有啥公交车(一般在number前面有个N的才是夜间车),上google搜 london bus route看能去哪儿。