what has roots nobody sees,It's taller than trees,Up up it goes,And yet never grows?It's _____

what has roots nobody sees,It's taller than trees,Up up it goes,And yet never grows?It's _____

mountain

有根人不未见，比树还要高，不断往上升，就是不长高？

Bamboo?

what has roots nobody sees,It's taller than trees,Up up it goes,And yet never grows?It's _mountain_

沿着它让没有人看见的根,与树相比更高It\'s向上去的,虽然如此从不成长吗?

Telegraph pole.