A vast and strongly fortified territory; an impregnable domain stretching for a thousand li.
这座山庄依山傍水，周围有天然屏障，真可谓金城千里，固若金汤。
This mountain villa, backed by mountains and facing water, with natural barriers all around, can truly be called a vast and impregnable domain, as solid as a strong fortress.
Era:
Ancient
Frequency:
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