come upstairs and see it 为什么不能用`come downstairs and see it

come upstairs and see it 为什么不能用`come downstairs and see it come upstairs and see me为什么不能用come upstairs to see it 为什么come upstairs and see it 在英语中不能用come upstairs to see it.求 come upstairs and see it 为什么用and 不用to come upstairs and see it为什么and不能换成to come upstairs and see it 与come upstairs to see it 那句对 come upstairs and see it 到楼上看看... come upstairs and see it的反意疑问句 come upstairs to see it 为什么不对? Come upstairs and see it.这里为什么不能把and替换为to? 为什么在英文中,不能用Come upstairs to see it. Come and see it.中,为什么?