European foreign ministers Monday agreed to impose stiff duties on some U.S. imports but delayed implementing the sanctions to give both sides time to resolve a trans-Atlantic trade dispute. The 12-nation European Economic Community will levy the tariffs if there is no move to ease the conflict by mid-February, warned Spanish Foreign Minister Francisco Fernandez Ordonez. "We hope the new North American administration will adopt a more intelligent attitude." The U.S. Mission to the EEC said in a statement: "We want to make every effort to first contain and then resolve this dispute, and this decision . . . is clearly a positive step in that direction."