blur

He passed by in a blur of motion.他一闪而过。

As the train sped on, everything outside the window was a blur.火车越开越快，窗外的一切变得模糊起来。

I looked out at the blur of faces in the audience.我望着观众那一张张模糊的脸。

The letters are just a blur without my glasses.我不戴眼镜看那些字母是模糊一片。

The whole weekend is just a blur to me. [=I don't remember the events of the weekend very clearly]周末发生的事我都记不清了。

a technique that blurs the edges of the image [=makes the edges of the image less sharp]模糊化处理图像边缘的技术

The tears in my eyes blurred the words on the page.满眼泪水使我无法看清页面上的字。

His novel is based on historical occurrences but it blurs the line/distinction between fact and fiction.他的小说以历史事件为依据，但模糊了事实与虚构之间的界限。

I was so tired that my vision/eyes started to blur. [=I was not able to see clearly]我累得两眼昏花。

The two events have blurred together in my mind.这两件事我记混了。