Sloping walls on the bulk of the building create an optical illusion.

大楼主体的斜墙给人造成一种视错觉。

A mirage is an optical illusion.

海市蜃楼是一种视错觉。

It's an optical illusion.

这是个视觉的假象。

But the scene is actually an optical illusion.

而事实上，这样的场景只是一种光学错觉。

This is no optical illusion - I am that close!

这不是视力错觉—我是那个结束！