The backmost square-shaped chamber of that inner shrine was the inner sanctum or the holy of holies.

神殿最后面的正方形的空间,是内圣所或者说，最神圣的地方。

Some toothbrush shapes will suit some mouths better than others. Make sure that your toothbrush bristles comfortably reach your backmost molars, as some brushes may be too large or wide.

某些牙刷刷头的形状会比其他形状的更适合你的口腔，要确保你牙刷的刷毛能够触抵你臼齿的最后端，既不能太大也不能太宽。