ACM - The Euro dropped against the Dollar on Thursday after European Central Bank President Jean-Claude Trichet said euro zone growth risks are to the downside, paving the way for lower interest rates this year. The Euro is now on track for its biggest weekly decline against the Dollar in two-and-a-half years. It was pressured from early in the session as the ECB left benchmark borrowing costs unchanged at 4% and Trichet, at a post-meeting press conference, also dropped his threat to act ahead of possible rising prices.