illusion ·noun (DIFFERENT)
Definition: something that is not really what it seems to be Level: C2
在一端放置一面大镜子，营造出更多空间的错觉。
There is a large mirror at one end to create the ___illusion of more space.
这种建筑解决方案创造出空间的错觉，让人感觉仿佛置身于一个广阔的大厅。
This architectural solution creates an ___illusion of space, one may feel as inside a vast hall.
政治家的承诺最终被证明是一种错觉，掩盖了严酷的现实。
The politician's promises turned out to be an ___illusion, hiding the harsh reality.