Her pupils were dilated. Her expression was vacant.

她的瞳孔扩张，表情很茫然。

Even really good actors probably can't control their pupils.

再好的演员也没法己的瞳孔。

The center of one's eye, the pupil, is dark and round.

眼睛的中心是瞳孔，瞳孔是暗色的、圆形的。

Harry saw is pupils contract to thin slits, saw the skin around his eyes whiten.

哈利看到他的瞳孔缩成了两条窄窄的细缝，看见他眼睛周围的皮肤变白了。

Your pupil is the size of a nickel.

你的瞳孔就跟五硬币样。

Also, the affected pupil becomes dilated and fails to constrict in response to light.

此外，受影响的瞳孔会放，对光反射消失。

Their pupils adjust to any lighting like magic.

它们的瞳孔能神奇地适应任何光线。

Your pupils dilate when you're scared, nervous or excited.

当你害怕、紧张或兴奋时，你的瞳孔会放。

Pupils are black because most of the light that enters them is absorbed.

瞳孔是黑色的，因为进入瞳孔的光线被吸收了。

And the woman with larger pupils was described as soft, more feminine, and pretty.

而瞳孔较的女性则被描述为温柔、更有女人味、更漂亮。

Their pupils that can see through the texts of time.

她有看透岁月篇章的瞳孔。

When you shine a light on HAL's eyes, his pupils may or may not dilate.

当你用光照射 HAL 的眼睛时，他的瞳孔会根据病情选择性地放或不放。

During totality it's dark, so your pupils have dilated to let more light in.

日全食时天空完全黑暗，你的瞳孔会扩张来让更多的光线通过。

Lastly, your pupils sometimes dilate if you're in love or if you're aroused.

最后，当你恋爱或被唤醒时，你的瞳孔有时会放。

Your pupils are really dilated, so much light is getting through.

你的瞳孔真的放了，有很多光线透过。

It is always round, however bright the light may be.

不管光线怎么强烈, 瞳孔直是圆的。

Her enormous pupils focused on Harry.

她那两只巨的瞳孔盯住了哈利。

It is a fact that when a person sees something appealing to them, their pupils dilate.

事实上，当个人看到吸引他的东西时，他的瞳孔会放。

That could be why they enlarge when we make eye contact with someone we, like, like-like.

这可能就是为什么当我们与喜欢的人进行眼神交流时，瞳孔会放的原因。

And because of how the slit pupil takes in light, it creates sharp, vertical contours.

由于瞳孔的狭缝吸收光线的方式，它形成了尖锐的垂直轮廓。