Shelterfromthenaturalelementsisabasicneed.Earlypeoplemetthisneedbydwellingincavesandthentheirdescendantsbegantoconstructbuildings.Keyfactorsinthedesignofthesesheltersweretheclimateandthematerialsavailable.Forexample,inhot,drycountrieshouseswithtinywindows (共 5884 字) [閱讀本文] >>