有时它可能看起来长的不是很快，但这时它却在地下悄悄生长着，好像它的根知道自己必须快速生长来保护树木免受自然危害的影响。

At times it may seem the tree isn't growing fast enough-but the growth is happening underground. It's as if the roots know they must ported the tree from the threatening elements.

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这一个长廊由生长速度很快的杂交白杨形成，位于加利福尼亚的一个林场，树木形成了一个哥特式大教堂的形状，这种结构是经过漫长的时间，对人类不屈不挠的精神的表白。

This long gallery of hybridized, fast-growing poplar trees on a Californian tree farm is reminiscent of a Gothic cathedral, a structure that testifies to the human spirit's perseverance through time.

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但是有些树木生长速度很快。

But some trees can grow quickly.

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