结尾(按关系密切程度排列)：
Sincerely yours，(Yours very sincerely，Always sincerely yours，)
Yours cordially，(Most cordially yours，)
Faithfully yours，(Yours faithfully，)
Truly yours，(Yours truly，)
Yours affectionately，(Always affectionately yours，)
Lovingly yours(Yours lovingly，your loving son，)
