求翻译：这是为了证明RAY CHAN先生 ，完成全日制四年的专业课程，主修工商管理学。从2008年9月至2011年6月考试合格通过，现予颁发证书毕业，准予毕业。是什么意思？

This is to certify ray chan President, four years of full-time professional courses, majoring in business administration. From September 2008 to June 2011 examination, is hereby awarded a certificate graduate, allowed to graduate.

This is in order to prove that Mr. RAY CHAN completed full-time 4 years of professional courses, majoring in business administration. From September 2008 to June 2011 examinations will be granted graduate, Graduate Certificate.

This is in order to prove Mr. RAY CHAN, completes the full-time four year special courses, majors in the industry and commerce management science.June, 2011 takes a test from from September, 2008 to passes qualified, presently gives issues the certificate to graduate, permits the graduation.

This was to prove that Mr RAY CHAN, completed four years of full-time professional course, majoring in business administration. From September 2008 examination passed, is hereby awarded to graduate certificates, graduate.