然而，一旦它们开始生长，这些植物似乎就无法阻止其茎或叶的新陈代谢的能力。

Yet once they start growing, such plants seem not to retain the ability to hit the pause button on metabolism in their stems or leaves.

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它们缺乏储水结构，而且它们长在岩石表面，这阻止了它们利用地下水，所以它们反而形成了改变新陈代谢的能力。

They lack water-storing structures, and their existence on rock faces prevents them from tapping groundwater, so they have instead developed the ability to change their metabolism.

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他们的柔韧性提高了阻止敌人进攻的能力。

Their litheness trait improves abilities that can stop an enemy from attacking.

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