home 是副词,做后置定语,修饰train
表位置关系的副词可以做后置定语,再如：
on his way home
the sun overhead
the boy here/ there
the girl upstairsa good man is who has a good character,who realized self-value of life,and who achieved social value.帮我看看这句话有问题吗a good man is 【one】who has a good character,who realized self-value of life,and who achieved social value非常感谢，我一直想写个特殊疑问句作表语的句子，还是没写出来，写成定语了