美国商务部：4月份的出口额为2894亿美元，比3月份的出口额多83亿美元。4月份的进口额为3510亿美元，比3月份的进口额少684亿美元。

Group 1 - The core point of the article highlights that in April, the export value of the United States reached $289.4 billion, which is an increase of $8.3 billion compared to March [1] - In April, the import value was $351.0 billion, showing a decrease of $68.4 billion from March [1]