WASHINGTON, June 8(Reuters) - The U.S. trade deficit retreated from a record high in April amid a decline in imports, but the improvement was likely temporary as domestic demand remains robust. The trade deficit dropped 8.2% to $68.9 billion in April, the Commerce Department said on Tuesday. Data for March was revised higher to show the gap widening to an all-time high of $75.0 billion instead of $74.4 billion as previously reported. Economists polled by Reuters had forecast a $69.0 billion trade deficit in April. (Reporting by Lucia Mutikani; Editing by Andrew Heavens) Our Standards: The Thomson Reuters Trust Principles.