The adobe dwellings(土坯房）(build) by the Pueblo Indians of the American Southwest are admired by even most modern of architects and engineers. In addition to their simple beauty, what makes the adobe dwellings admirable is their (able) to “air condition” a house without （use）exact equipment. Walls made of adobe take in the heat from the sun on hot days and give out that her（slow）during cool nights，thus warning the house. When a new day breaks, the walls have given up their heat and are now cold enough (cool) the house during the hot day: the same time, they warm up again for the night This cycle (go) day after day: The walls warm up During the day and cool off during the night and thus always a timely offset（抵消）for the outside temperatures. As (nature) architects, the Pueblo Indians figured out exactlythick the adobe walls needed to be to make the cycle work on most days.
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