帮我猜几个英语谜语

题目

帮我猜几个英语谜语
With a heavy cloud.
It runs and cries aloud.
It runs on land carefree.
But crosses not the sea.
黑云飘飘,
边跑边叫,
游遍四海,
四海难到.这是什么?

答案

train（火车）