早些时候伊拉克发现两架美军直升机坠毁，4名美军士兵阵亡。

听写提示：Hussein Lopez, Kirkuk, OH-58 helicopter, UH-60 Blackhawk helicopters
The early morning crash of 2 U.S. helicopters in northern Iraq left 4 American soldiers dead in the first reported helicopter crash this year. It is not entirely clear what caused the crash, but a U.S. military spokesman in Baghdad, Major Hussein Lopez, said that enemy fire was not the suspecte…