visual illusion例句

I cannot say for sure if it was your visual illusion.
我不能肯定这是不是你的视错觉.

Are you sure it is not your visual illusion?
你能肯定这不是你的视错觉吗 ?

By the light, we see something differently, so there is a visual illusion of the object.
有光我们就会看到一些不同的东西, 所以物体有一种视觉错觉.