美国石油协会（API）数据显示，上周美国API原油库存增加1340万桶

Group 1 - The core point of the article is that the American Petroleum Institute (API) reported an increase in U.S. crude oil inventories by 13.4 million barrels for the previous week [1] Group 2 - The data was released on February 20, indicating significant changes in oil inventory levels [1] - The increase in inventory may have implications for oil prices and market dynamics [1]