Nobody understands why this team keeps losing. My interpretation is that there is internal fissure at play.谁也搞不懂这个球队为何老是输球，依我看是内部不合。Children spend hours at play.小孩子花很多时间玩耍。There are several factors at play here.这里有好几个因素在起作用。Several issues are at play in determining the price of gasoline.好几个因素影响着汽油价格。