这句话英文怎么翻啊？

We have presented our requirements to your staff of shanghai branch many times; however, it seemed that they were not professional and did not own the capacity to take their responsibilitise. We felt sorry that our cooperation was not so good as our expection.

We once many times proposed the demand to the expensive side in theShanghai personnel, your firm appeared in the Shanghai personnel inthe inferior aspect frail and is insufficient, regarding from this thecooperation achievement which caused is not ideal, we expressed theregret