make or become wider, larger, or more open
(使)膨胀;(使)扩大
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[no obj.]
her eyes dilated with horror 她出于恐惧瞪大了眼睛
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[with obj.]
the woman dilated her nostrils .那个女子张了张鼻孔。
[no obj.](
详述;铺叙。
"late Middle English: from Old French