First of all, the reduction in bodily movement was essential.

首先，减少身体活动至关重要。

Being unable to flex as skin and tissue does makes batteries both unreliable (as bodily movement can cause circuits to fail) and uncomfortable to wear.

无法像皮肤和组织那样弯曲使得电池既不可靠（因为身体运动可能导致电路故障）， 又佩戴起来不舒适。

But when a man's bodily movements are what we call " voluntary, " they are, at any rate prima facie, very different in their laws from the movements of what is devoid of life.

但是，当一个人的身体运动是我们所说的“自愿”时，无论如何，从表面上看，它们在规律上与没有生命的运动是非常不同的。