美国至5月30日当周API汽油库存 470万桶，预期153.3万桶，前值-52.8万桶。

Group 1 - The core point of the article indicates that the API gasoline inventory in the U.S. for the week ending May 30 increased by 4.7 million barrels, significantly higher than the expected increase of 1.533 million barrels and contrasting with the previous week's decrease of 0.528 million barrels [1]