上海世博会，“上海世博会园区”也认真规划，估计有一个永世性的展览大厅建设。

Shanghai World Expo, construction of the "Shanghai World Expo Park" is also careful planning, it is estimated there is a permanent exhibition hall.

youdao

上海世博会，上海世博会园区也认真规划，估计有一个永久性的展览大厅建设。

Shanghai World Expo, construction of the Shanghai World Expo Park is also careful planning, it is estimated there is a permanent exhibition hall.

youdao