buildings是building的复数
building
美 ['bɪldɪŋ] 
英 ['bɪldɪŋ] 
- n.建筑;建筑物;制造;组装
 - v.“build”的现在分词
 - 网络大楼;房屋;厂房
 
复数:buildings  
adj.+n.
tall building,ancient building,same building,beautiful building,huge building
v.+n.
building design,build building,building damage,erect building,demolish building