Her pupils were dilated. Her expression was vacant.

她瞳孔扩张，表情很茫然。

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

再好演员也没法控制自己瞳孔。

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

眼睛中心是瞳孔，瞳孔是暗色、圆形。

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

哈利看到他瞳孔缩成了两条窄窄细缝，看见他眼睛周围皮肤变白了。

Your pupil is the size of a nickel.

你瞳孔就跟五分硬币一样。

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

此，受瞳孔会放，对光反射消失。

If someone widens their pupils, then this may indicate their approval.

如果有人瞳孔扩张，这可能代表着他们认可。

Their pupils adjust to any lighting like magic.

它们瞳孔能奇地适应任何光线。

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

当你害怕、紧张或兴奋时，你瞳孔会放。

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

瞳孔是黑色，因为进入瞳孔部分光线被吸收了。

House cats, for one, are twilight hunters with vertically elongated pupils.

举个例子，家猫是黄昏猎手，瞳孔垂直拉长。

Next, a flashlight is used to check for pupil response.

接下来，用手电筒检查瞳孔反应。

They also oppose changing physical qualities such as eye color or height, the study found.

他们还反对改变瞳孔颜色或身高等身体特质。

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

而瞳孔较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 眼睛时，他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，你瞳孔会扩张来让更多光线通过。

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，你瞳孔有时会放。

The pupils enlarge when there is no light.

没有光时候，瞳孔会放。

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

不管光线怎么强烈, 瞳孔一直是圆。