persistent vegetative state

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This might be a persistent vegetative state with no possibility of turning it on, even in principle.
这可能是个持续性植物状态,即便原则上，都没有可能重启开关。
She emerged in a “persistent vegetative state”—the common term for someone who does not respond consciously to their surroundings.
她处于"持绿性植物状态"——一个常用于那些不能对环境做出有意识反应的人的术语。
The result is a booming business in those free-standing storage facilities, where junk goes to linger in a persistent vegetative state, somewhere between eBay and the dump.
结果就是繁荣了那些独立仓储的生意，使垃圾产品以一种持久的植物状态游离于易趣和垃圾箱之间的某个地方。

This might be a persistent vegetative state with no possibility of turning it on, even in principle.
这可能是个持续性植物状态,即便原则上，都没有可能重启开关。
耶鲁公开课 - 死亡课程节选
There we are in Phase D,in something like, perhaps,persistent vegetative state.
这就是D阶段，可以叫做，持续植物人状态。
耶鲁公开课 - 死亡课程节选

a medical condition in which a person's brain shows no sign of activity and they have to be kept alive by drugs and machines

If someone is in a persistent vegetative state, they are unable to think, speak, or move because they have severe brain damage, and their condition is not likely to improve.