美国银行储备金下降至2.8万亿美元，创2020年以来新低

Core Insights - The core point of the article is that the reserves of American banks have decreased to $2.8 trillion, marking the lowest level since 2020 [1] Group 1 - American bank reserves have fallen to $2.8 trillion [1] - This decline represents a significant drop in reserves since 2020 [1]