就是说，我记得那一天，我回来的时候，结果火车阶梯呀，那个板都放不下来。
jiùshìshuō ，wǒ jìde nà yī tiān ，wǒ huílai de shíhou ，jiéguǒ huǒchē jiētī yā ，nàge bǎn dōu fàng bù xiàlai 。
That is to say, I remember on that day, when I came back, the train couldn't even put down the stairs. They couldn't even get that board down.