She is a mistress of disguise.是什么意思？

She is a mistress of disguise.

她是伪装的高手。

she

pron. 她，它；

例句
Her lover walked out on her after she had aborted their child.
她的情人在她打掉胎儿后甩了她。

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

mistress

n. 主妇，女主人，霸主，女统治者，情妇，<英>女教师；

例句
She was his mistress for three years...
她曾做过他3年的情妇。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

disguise

vt. 隐瞒，掩饰，伪装，假装，化装，掩盖；n. 伪装，伪装品，用作伪装的东西，托辞，借口；

例句
The British team did not disguise their delight at their success...
英国队毫不掩饰他们获胜的喜悦。