air castle

Agricultural production is assisted is more a castle in the air.

农业生产辅助更是“空中楼阁”.

But your last quotation still seemed like air castle which made me failed to reach for.

只是你们上次的报价还是象空中楼阁一样让我可望而不可及.

What he is talking about is just a castle in the air.

他所谈论的一切,只不过是空中楼阁.

Because of the disjoint of the theoretical and practical research of reading instruction, many theories can not be put into practice for proof-test finally. So the theory becomes an air castle without any practical applicable worth;

关于阅读教学对话的理论研究与实践研究脱节，很多理论最终难以付诸实践和接受实践的检验，理论建构成为空中楼阁，缺乏实际应用价值；

Then Ibrahim looked once more in the surface of the diamond and saw a great web like that of a spider hanging in the air round the castle.

易卜拉欣又看了一次钻石面，这回看见一张蜘蛛网似的大网悬在空中，罩着城堡。

Humanity spirit will a castle in the air if man's desire cannot be satisfied.

如果人的欲望都难以得到满足的话,那么人文精神也就无从谈起.

It is out of the question for anyone to build a castle in the air.

任何人想建立空中楼阁都是不可能的.

Short of perfect Regional Innovation System, National Innovation System will be nothing else but air castle.

没有健全的区域创新体系，国家创新体系无异于空中楼阁。