saw them【 playing football]宾语补足语【 in the playground】地点状语修饰宾语补足语playing

问题描述:

saw them【 playing football]宾语补足语【 in the playground】地点状语修饰宾语补足语playing

对的.地点状语修饰宾语补足语playing,用来说明地点.