<prompt> Translate the following text to EnglishMwalimu Chou alikuwa Mshiriki wa Wafanyakazi wa Ufundi wa Tume ya Kiwango cha Posta kutoka 1993 hadi 1995.  <response>: MR. CHU WAS A PROFESSIONAL STAFF MEMBER OF THE POSTAL RATE COMMISSION FROM 1993-1995. 