Existing houses are becoming totally unfit for human habitation.

现存的房子正变得完全不适合人居住。

《柯林斯英汉双解大词典》

The recent survey found that 20 percent of rented dwellings are unfit for human habitation.

最近的调查发现，20%的出租屋并不适合人的居住。

《柯林斯英汉双解大词典》

Another option: Climb high and look for signs of human habitation.

还有个选择：攀登到高处并寻找人类居住的迹象。

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Thus the map is really a map of human habitation (largely so at least).

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Also, there is no hope of ever establishing human habitation more than about 1000 ft deep.

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Recent revised dates for other hominid occupation sites in North-East Asia show that human habitation of the region began about 1.3 million years ago.

BBC: 'Peking Man' older than thought