paralyzes

The poisons contained in deadly nightshade affect the nervous system. Taken in sufficient doses, the deadly poison paralyzes nerve endings in the involuntary muscles of the body, such as the blood vessels, heart and gastrointestinal muscles.

颠茄中所含的有毒物质主要作用于神经系统，如果不慎摄入了足够的剂量，这些致命的有毒物质就会麻痹诸如血管、心脏以及胃肠道肌等人体不随意肌中的神经末梢。

So first of all, let me express my firm belief that the only thing we have to fear is fear itself-nameless, unreasoning, unjustified terror, which paralyzes needed efforts to convert retreat into advance.

因此，让我首先表明我的坚定信念：我们唯一不得不害怕的就是害怕本身--一种莫名其妙、丧失理智的、毫无根据的恐惧，它把人转退为进所需的种种努力化为泡影。

So first of all, let me assert my firm belief that the only thing we have to fear is fear itself-nameless, unreasoning, unjustified terror, which paralyzes needed efforts to convert retreat into advance.

因此让我首先表明我的坚定信念我们唯一不得不害怕的就是害怕本身--一种莫名其妙、丧失理智的、毫无根据的恐惧它把人转退为进所需的种种努力化为泡影。