Signals about their stressed state can pass to any neighboring plants that touch roots, so those plants know to prepare for drought by closing their stomata, too.

关于它们的压力状态的信号可以传递给任何接触根部的邻近植物，所以这些植物也知道通过关闭气孔来为干旱做准备。

A simple way of seeing this is, if you're in a stressed out state, high anxiety state, your blood pressure starts to go up and that's a physical manifestation of something that's happening on the mental side of your body.

一个简单的理解方法是，如果你处于紧张的状态，高度焦虑的状态，你的血压会开始上升，这是你身体精神方面发生的事情的物理表现。