城市规划部门正在研究如何优化这片区域的土地利用。

The urban planning department is studying how to optimize ___land-use in this area.

城市规划师正在讨论这片区域的用地性质是否应该从工业改为商业。

Urban planners are debating whether to change the ___land-use of this area from industrial to commercial.

城市规划需要考虑合理的土地利用。

Urban planning should consider proper ___land-use allocation.