美国4月工厂订单月率 -3.7%，预期-3.1%，前值由4.30%修正为3.40%。

Group 1 - The core point of the article indicates that U.S. factory orders in April decreased by 3.7%, which was worse than the expected decline of 3.1% [1] - The previous value of factory orders was revised down from 4.30% to 3.40% [1]