取而代之的是，他们发现自己置身于黑压压的厚重烟雾中。
Instead they found themselves staring into a thick brown haze.
其厚重而不透明的体快凹陷始终处于人们的视野，盘旋于建筑的中央。
Its heavy opaque mass is always in view, hovering midway in the building.
其厚重而不透明的体快凹陷始终处于人们的视野，盘旋于建筑的中央。
Its heavy opaque mass is always in view, hovering midway in the building.
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