Kaitlyn: That's what siblings are for!

凯特琳：这才是兄弟姐妹。

Kaitlyn Lee Smith, 21, of Preston, said she and her boyfriend were travelling home on the Epping-bound service when they heard an explosion as the train left Croxton Park station about 12.25am.

21岁的凯琳史密斯和他的男友乘坐本次列车回家。 当车开出Croxton公园的时候，大约中午12点25分，他们听到了一声爆炸声。