At night, the pupils dilate to allow in more light.
晚上，瞳孔放大以便让更多的光线射入。
Pupils dilate, palms become sweaty and the heart rate increases.
瞳孔放大，手心出汗。心率加快。
It has been observed to cause the pupils to dilate, increase blood pressure, and increase the heart rate.
它也可能引起瞳孔膨胀，血压增高和心率不齐。
It's necessary to dilate the pupils for the eyetest . In this way we can get the exact dioptre.
医生：验光需要放大瞳孔，这样我们可以得到准确的屈光度。 %。
The pupils of your eyes dilate when you enter a dark room.
当你进入暗室时，你的眼睛的瞳孔就会扩大。
The pupils of your eyes dilate when you enter a dark room.
当你进入暗室时，你的眼睛的瞳孔就会扩大。
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