And those cellulose fibers aren't just tossed willy nilly into the tree, either.

这些纤维素纤维也不是随便长在树上的。

For example, thanks to those aligned bundles of cellulose fibers, trees are stronger across the grain rather than along it.

例如，由于那些排列整齐的纤维素纤维束，树木在谷物上比沿着谷物更坚韧。

Wood consists of cellulose fibers and a compound called lignin,   an organic polymer.

木材由纤维素纤维和一种称为木质素的化合物组成，木质素是一种有机聚合物。

If you try to chop a tree horizontally, lumberjack-style, these super-strong cellulose fibers will bear the brunt of the force and make it hard to chop.

如果你试图像伐木工人那样从水平方向砍树的话，这些超强的纤维素纤维让砍树变得非常困难。