The wall is thick, and there is a door at its outer and inner face.

墙厚，内外各有门。

All these structures, from the outside to the great courtyard and from foundation to eaves, were made of blocks of high-grade stone cut to size and smoothed on their inner and outer faces.

建造这一切所用的石头都是宝贵的，是按着尺寸凿成的，是用锯里外锯齐的，从根基直到檐石，从外头直到大院，都是如此。