r /> 江逾白回答：“Sure.Now you see we are basically on the er of the road.tinue going down until you reach the traffic lights and then make a right，you will know where your destination is.”
林知夏笑说：“Many thanks.A few minutes ago I walked across the park but I could not find ao help me......”
“行了行了，”郑老师打断道，“你们俩个怎么还像演戏一样，搁这儿演上了？不过呀，林知夏同学用了一个短语，大家要注意，walk across the park和walk through the park都代表了一个人从公园里走过。那么，across和through这两个介词，分别用在公园的语境里，有什么区别呢？哪位同学知道？”
江逾白原地举手。
郑老师同意道：“江逾白，你