为什么be power off,的off要作为形容词后置,off又不具有后置形容词的任何性质?

为什么be power off不能是be off power 为什么be power off,的off要作为形容词后置,off又不具有后置形容词的任何性质? 为什么power off明明是动词+副词的词组,却可以用在be power off这样的形式中 power off wifi app must be off first.is will power off. 充电器the power be off state power off是什么词性的词组 be better off的off是什么意思 为什么power off可以作为形容词词组?power是动词,off是副词啊? mp4出现 low battery!power will be turned off now是怎么回事呢是三星的T9 为什么计算器上面有个auto power off The power is off/gone. 1.Power off the computer. be much better off.这里的off是什么词性? be off 与be away的区别 off OFF, 英语翻译2.Operation1)power on:insert earphone to jack 2,then it will be power on in 2 second2)Power off:take off earphone from jack 2,it will be power off.or press Vol-key longer to adjudst volume to zero,it will be power off then3)Next/pre:when