1.以下的现在完成时是代表她到现在还站着还是代表她在有噪音或发生战争时站着之后就不站着了？"It is silent now. But I have stood here when the whole air was full of the noises of Charn; the trampling of feet, the creaking of wheels, the cracking of the whips and the groaning of slaves, the thunder of chariots, and the sacrificial drums beating in the temples. I have stood here (but that was near the end) when the roar of battle went up from every street and the river of Charn ran red."

2.如果这段话不是直接引语而是由作者说的，是不是该变成she had stood其他部分不变？意思该怎么理解？是不是有噪音时就站着直到后来的某个时间点结束？