There's a speck of dust on your glasses.

你的眼镜上有一个小斑点。

It is a speck of dust in the eye.

不过是眼里的一粒尘土。

But the world itself is only a speck of dust.

灰尘的微粒、 煤炱、头皮屑。

A speck of dust on the patent leather of her boot.

楼梯上也有一阵皮靴声。

Instantly, I became an embryo the size of a speck of dust.

很快地，我变成一颗灰尘般大小的胚胎。

When Kepler sees a star that dims, it could be due to a speck of dust that crossed in front of the telescope.

当开普勒检测到恒星变暗有可能是因为望远镜前的一些尘土。