例一:AppologyDearMr./Ms,WearesorrywecannotsendyouimmediatelythecatalogueandpricelistforwhichyouaskedinyourletterofMarch10.Suppliesareexpectedfromtheprintersintwoweeksandassoonaswereceivethem,wewillsendyouacopy.Yoursfaithfully道歉尊敬的先生/小姐,对三月十日来信所要目录和价格单,很抱歉不能马上寄去。印刷商两周后供货,一旦收到,我们将给您寄去一份。您诚挚的例二:ExplanationDearMr./Ms,IwasveryconcernedwhenIreceivedyourletterofyesterdaycomplainingthatthecentralheatingsysteminyournewhousehadnotbeencompletedbythedatepromised.Onreferringtoourearliercorrespondence,IfindthatIhadmistakenthedateforcompletion.ThefaultisentirelymineandIdeeplyregretthatitshouldhaveoccurred.Irealizetheinconvenienceouroversightmustbecausingyouandwilldoeverythingpossibletoavoidanyfurtherdelay.Ihavealreadygiveninstructionsfortheworktohavepriorityandtheengineersworkingonthejobtobeplacedonovertime.Thesearrangementsshouldseetheinstallationcompletedbynextweekend.Yoursfaithfully解释尊敬的先生/小姐,昨天收到你的来信,抱怨你新家的中央加热系统未按规定时间装好,对此我非常关心。参考较早的通信,我发现我搞错了完成日期。错误完全是我的,对此我非常抱歉。认识到我们的疏忽给你造成的不便,我们将竭尽全力避免再耽搁。我已指示这项工作优先做并让工程人员加班。这样安排会于下周完成安装。你诚挚的