4.7平方米超甲级写字楼 ,it is wrong.
4.9平方米商业设施?,it is wrong.
The center covers an area of 100,000 square meters with 30 floors and 2 underground floors,of which 47000 square meters will be the Grade A office space,49000 square meters will be commercial facilities,and the rest space will be for the other running facilities.