vt. 使膨胀。 with dilated eyes 瞪着眼睛。 vi. 1.扩张，膨胀。 2.详述。 短语和例子 dilate on [upon] a subject 对问题详加叙述。
become wider; "His pupils were dilated" 同义词：distend,
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing; "She elaborated on the main ideas in her dissertation" 同义词：elaborate, lucubrate, expatiate, exposit, enlarge, flesh out, expand, expound,
例句与用法
1.
Her nostrils were slightly dilated . 她的鼻孔微微张着。
2.
His nostrils dilated with the scent of the air . 他的鼻孔因为空气中的香味而张大了。
3.
The lungs dilate when breathing . 呼吸时肺部扩张。
4.
If there were time, i could dilate upon this subject . 假如有时间，我可对此题目加以详述。
5.
On this occasion he dilated at great length on the subject . 在这种情形下他又冗长地说明这个问题。
6.
The doctor's learnedness would be a subject to dilate on . 而这位博士的学识是一个应该详加论述的话题。
7.
The reich foreign minister dilated upon the might of his country . 这个德国外交部长大肆夸耀他的国家的威力。
8.
She dilated on the beauty of the park and the hall to gratify him . 她不断地夸奖园林和府第的美丽，让他高兴。
9.
She was dilated and brilliant, like a flower in the morning sun . 她神采飞扬，感情充沛，就象初升太阳下的花朵。
10.
The ileocecal valve and terminal ileum are usually dilated rather than stenosed . 回盲瓣和末端回肠常呈扩张面而不狭窄。
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