瞳孔

fàng dà le de tóng kǒng

放大了的瞳孔

dilated pupils

yī shēng jiǎn chá le yī xia tā de yǎn jing dàn méi yǒu yì cháng de tóng kǒng sàn dà

医生检查了一下他的眼睛，但没有异常的瞳孔散大。

The doctor checked his eyes but there was no abnormal pupil dilation.

tóng kǒng kuò dà shì duì huà xué cì jī de fǎn yìng

瞳孔扩大是对化学刺激的反应。

The pupils dilate in response to chemical stimuli.