上错了车却有不一般下错了站却有不一样
[shàng cuò le chē què yŏu bù yī bān xià cuò le zhàn què yŏu bù yī yàng]
It means that although you've made a mistake initially (e.g., getting on the wrong bus/train), the journey might still bring unexpected experiences and surprises. Each misstep offers an opportunity to discover something unforeseen or meet unexpected circumstances positively.