So the gray lines went back through the muddy fields, back toward Atlanta.

因此南军只好后撤，经过泥泞的田野向亚特兰大撤退。

Because of the consistent gray line pattern, your brain assumes the rest of the image is just like that and misses the black dots until you look directly at them.

因为你看到规则的灰线图，你的大脑断定图片剩下的部分都一样，所以你忽略了那个黑点除非你直接盯着黑点看。

She stared out of the window with her lips pinched together, and it seemed quite natural that the rain should have begun to pour down in gray slanting lines and splash and stream down the window-panes.

她抿着嘴唇凝视着窗外，似乎很自然地，雨水开始以灰色的斜线倾泻而下，溅落在窗玻璃上。

I would think that that's a very gray line, about legal versus illegal, only because if something was obtained, quote, legally, let's say 100, 150 years ago — under current standards, it might be a repugnant way that it was acquired.

我认为这是一条关于合法与非法的灰色线，只是因为如果某物是在 100、150 年前合法获得的，引用的话，根据当前的标准，这可能是一种令人反感的获得方式。