1. This is because that our subconscious mechanisms have control of this involuntary system. 这是因为我们的潜意识机能控制了这个不自觉的系统。
2. Doctors say that breathing is a unique human function in that it can be fully voluntary or involuntary. 医生们说：呼吸是一种独特的人体功能，既可以充分地随意进行，又可以非随意地进行。
3. Miracles are habits, and should be involuntary. They should not be under conscious control. Consciously selected miracles can be misguided. 奇迹是种习性，应是无心而发的，它应超越意识的控制。蓄意挑选的奇迹很可能导入歧途。
英英解释
adj.
1. not subject to the control of the will
2. controlled by the autonomic nervous system; without conscious control
