知识贝壳
知识贝壳
所属栏目：建筑施工英语
Shelterfromthenaturalelementsisabasicneed.Earlypeoplemetthisneedbydwellingincavesandthentheirdescendantsbegantoconstructbuildings.Keyfactorsinthedesignofthesesheltersweretheclimateandthematerialsavailable.Forexample,inhot,drycountrieshouseswithtinywindows ......（本文共 5884 字 ） [阅读本文] >>