riddle(英语猜谜）

题目

riddle(英语猜谜）
What has roots as nobody sees,
It is tallerthan trees,
Up,up it goes.
And it never grows?
It's_____________.

答案

What has roots as nobody sees,
It's taller than trees,
Up,up it goes.
And yet never grows?
It's_mountain(山）.