引用:
原帖由 冰城来的男孩子 于 2009-11-19 19:36 发表
There are two swings in children center. There is a slide in children center. But there is not seesaw in children center.
He just learned these words(seesaw/swing/slide) yesterday.
I think here should use in the children center, as the center he mentioned is the children center downstairs..