他们的计划不过是空中楼阁而已，因为它根本行不通。
空中楼阁
a castle in the air
暂无补充释义。
相关例句
相关词条
castle
castle in the air; daydream; ivory tower
lead castle
cloud-castle
Castle's intrinsic factor
castle-builder
castle nut
castle nut
a castle in the air
暂无补充释义。
他们的计划不过是空中楼阁而已，因为它根本行不通。
castle
castle in the air; daydream; ivory tower
lead castle
cloud-castle
Castle's intrinsic factor
castle-builder
castle nut
castle nut