The bullet slammed into the ceiling, spraying them with bits of plaster.子弹砰地射进了天花板，掉落的石膏碎片落了他们一身。The building was of greyish plaster and looked old.这幢楼刷的是浅灰色的灰泥，看上去有些陈旧。It had a high ceiling, ornamented with plaster frui...
The building was of greyish plaster and looked old.这幢楼刷的是浅灰色的灰泥，看上去有些陈旧。Obviously the plaster's just perished and all fallen off.很明显灰泥已脆裂老化，全剥落下来了。He mixed up some plaster to repair the wall.他和了一些灰泥去补墙。The plaster i...
May the sight of our human beings can only see apparent horizon forever.也许我们人类的目光永远只能够看到地平线.The time - like limIt'surface, the apparent horizon and the event horizon no longer coincide each other.这种黑洞的事件视界 、 表观视界和类时...