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However , much sleep deprivation is involuntary .

然而，许多睡眠损失是非自愿的。

Healthy , voluntary coughs tend to be slightly louder than the involuntary coughs of an ill person .

健康自愿的咳嗽往往比患者非自愿的咳嗽声音略大。

The next step is to control the involuntary movements with medication .

下一步就是用药物来控制无意识的运动。

It is very tempting and almost involuntary to look back on the past and obsess over something we regret or something we miss .

我是否徘徊过去？回顾过去，沉迷于我们遗憾或者错过的事情是非常诱人和几乎令人不由自主的。

You didn 't have to choose between the two , of course , but on a visceral , almost involuntary level the choice made itself for me .

当然你不用再他们中二选一，但我的选择是发自内心，几乎是不由自主做出的。