居住活动的需求是分层次的，当低层次的需求的得到满足后，住户才会提出更高的要求。
Living activities at different levels of demand, when demand for low-level are met, the tenants will be put forward higher requirements.
住宅空间的尺寸是根据居住活动的需求设计的，不同特点的居住活动空间形成了多个行为单元。
The size design of residential space are basis on the the needs of living activities, the different characteristics of the living activities made lots of different behavior units.
如果在这些活动中，这个行星的地理特征遭到破坏，环境不再适合大量物种居住，那么就随它去吧。
If in these activities the physical features of the planet are damaged, if the environment is made inhospitable for a multitude of living species, then so be it.
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