那是一个无人居住的岛屿。

That is an ___uninhabited island.

那座房子原来是无人居住的，正如我兄弟所说。

The house turned out to be ___uninhabited, as my brother had said.

由于条件恶劣，那个偏远的山谷仍然无人居住。

The remote valley remains ___uninhabited due to harsh conditions.