她不会置身事外的。

She couldna' keep out of it.

剩下的就是想方设法置身事外。

The rest are trying to stay out of it.

如果是那样的话，你应该置身事外。

And in that case you should butt out.

这里有第二个置身事外的角色，就是高高挂在头顶的月亮：“月亮高挂天心，像个公正的决断人。”

There's a second figure here standing ab extra, and that's the moon hovering overhead: "while over-head the moon / sits arbitress."