A:Sir, what do you think about this unit? 先生,你觉得这单位怎么样? It's used to be a glass retailer. 它过去是一间玻璃公司的办公室. The landlord wants to sell this unit and buy a bigger one. 业主希望出让这单位后买一个较大的。 C:What is the size of this unit? 这单位面积是多少? A:The gross area is one thousand square feet, 建筑面积是一千平方尺, and the net area is seven hundred and eighty-eight square feet. 实用面积是七百八十八平方尺, It suits your requirement. 符合你的要求。