AP - Sun Dec 25, 9:37 AM ET U.S. Army Staff Sgt. Donnie James, of Fayetteville, North Carolina, concentrates during a game of dominos in Baghdad, Iraq, Sunday, Dec. 25, 2005. Approximately 160,000 American troops spent Christmas in Iraq this year. (AP Photo/Jacob Silberberg)

词汇：

Sgt. Sergeant 中士

staff [军]参谋机构

domino n.骨牌, 多米诺骨牌

Baghdad n.巴格达(伊拉克首都)

approximately adv.近似地, 大约