She evidenced her approval by promising her full support。是什么意思？

She evidenced her approval by promising her full support。

她答应全力支持，以此来表明她的赞成。

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。

evidenced

vt. 使明显（evidence的过去式与过去分词形式）；

例句
He's wise in other ways too, as evidenced by his reason for switching from tennis to golf...
他在其他方面同样明智，这一点可以从他不打网球改打高尔夫的理由中得到证明。

her

pron. (she的宾格)她，(she的所有格)她的，她，指某个国家，（一艘）船；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

approval

n. 同意，批准，赞成；

例句
...efforts to win congressional approval for an aid package for Moscow...
为获得国会准许向莫斯科提供一揽子援助而付出的努力

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

promising

adj. 有前途的，有希望的，光明，有为；

例句
Mr Beazer tried to calm the protests by promising to keep the company's base in Pittsburgh.
比泽先生承诺仍将公司总部设在匹兹堡,以求平息抗议。

full

adj. 满的，装满的，完全的，完整的，丰富的，详尽的；adv. 极其，十分，充分地，完全地，整整，直接地；n. 充分，完全，全部，完整，极盛时；v. 把衣服缝得宽大，把裙子缝出皱褶，[印]蒸洗，漂洗；

例句
The full address on a stick-on label was that of a Mrs P. R. Slater of Peterborough...
不干胶标签上的完整地址写的是彼得伯勒的一位P. R. 斯莱特太太。