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问题：麻烦帮我改改Atimberverandapostisastructuralbuildingelementwhichprovidessupporttotheroofofveranda.Itismoderatelydifficulttoreplace,however,sinceitisexposed,failureofaverandapostcanbeeasilydetectedduringnormalma
答案：↓↓↓ 茹锋的回答： 网友采纳 写得非常清楚了.不过我还是本着吹毛求疵精神,提一点文法方面的建议,供参考哈. 〔〕中的部分应去除. （）中是改过的地方. Atimberverandapostisastructuralbuildingelement(that)providessupporttotheroofofveranda.Itismoderatelydifficulttoreplace,however,sinceitisexposed,failureofaverandapostcanbeeasilydetectedduringnormalmaintenance.Therefore,accordingtotheassessmentfordurabilityrequirementinB2,averandapostwouldbestfitinthe15yeardurabilityrequirement. Agypsumplasterwallboard[s]isusedtomakeinteriorwalls.Itisastructuralbuildingelement,howeveritdoesnot(add)stabilitytothebuilding.(Itsreplacementisnotdifficult)buttimeconsuming.Failureofagypsumplasterwallboardcanbeeasilydetectedduringnormalmaintenanceasitssurfaceisexposed.Therefore,accordingtotheassessmentfordurabilityrequirementinB2,agypsumplasterwallboardwouldbestfitinthe15yeardurabilityrequirement. | 
