中文譯英文的問題，謝謝！

This is to certify that Chan Siu-man had been enrolled in our school in 1997. He left the school on 16 March 2000 when he was in the third grade as migrated overseas with his family.

2008-05-28 18:16:55 補充：
I certify that Chen Si Man, in 1997 to attend school, due to emigration, small text on March 16, 2000 drop-outs, school leavers at the level of third grade.

2008-05-28 18:17:08 補充：
Proved that entered the reader school oldly and youngly and gently in 1997, because of the immigrant, left school on March 16, 2000 small and gentle, the rank is grade three while leaving school.

2008-05-28 18:17:44 補充：
This to certify that Chan Siu Ming withdrew from our school in 16th March, 2000 because of emigraton. Chan Siu Man enrolled in school in 1997 and last attended in F.3.

Proved that entered the reader school oldly and youngly and gently in 1997, because of the immigrant, left school on March 16, 2000 small and gentle, the rank is grade three while leaving school.

This to certify that Chan Siu Ming withdrew from our school in 16th March, 2000 because of emigraton. Chan Siu Man enrolled in school in 1997 and last attended in F.3.

2008-05-23 18:45:12 補充：
I missed one word. It should be: This is to certify that ........

2008-05-23 18:51:09 補充：
我觉得需要证明的应该是陈小明是在2000年退学，而不是证明他1997年入学。所以我把句子的次序改一改。 入学年份和班级只是补充内容。希望没错啦。

To whom it may concern
This is to certify that Chan Siu-man had been enrolled in our school in 1997. He left the school on 16 March 2000 when he was in the third grade as migrated overseas with his family.

I certify that Chen Si Man, in 1997 to attend school, due to emigration, small text on March 16, 2000 drop-outs, school leavers at the level of third grade.

Proved that entered the reader school oldly and youngly and gently in 1997, because of the immigrant, left school on March 16, 2000 small and gentle, the rank is grade three while leaving school.

希望幫到你!!!