[概述]10﹒因迟复来信道歉便条（Apology for writing late）

Dear . . .，I am afraid that you will think me unpardonably negligent for not having answered your letter dated 16th May，but when I have told you the reason，I trust you will believe that the neglect was excusable .亲爱的× × ×：我想你一定会认为我不答复你五月十六日的来信是不可原谅的疏忽，不过， ......