Their indecision has been replaced by confidence and steely determination...是什么意思？

Their indecision has been replaced by confidence and steely determination...

他们的优柔寡断已经被自信和钢铁般的决心所取代。

their

pron. 他（她，它）们的，在提及性别不详的人时，用以代替 him 或 her；

例句
Their permissiveness toward their children reflects the wild abandon of their own lives.
他们对孩子的放任折射出他们自身生活的放浪形骸。

indecision

n. 优柔寡断，犹豫不决；

例句
The team has been plagued by indecision and internal divisions.
优柔寡断与内部分裂深深困扰着该团队。

has

v. 有( have的第三人称单数 )，（亲属关系中）接受，拿，买到；

例句
...the operation a patient has had.
病人做过的手术

been

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去分词 ），在，存在，不受干扰，去过了，be的过去分词；

例句
Have you been able to have any kind of contact?...
你联系上了吗？

replaced

v. 取代( replace的过去式和过去分词 )，更换，把…放回原位，（用…）替换；

例句
The mist had been replaced by a kind of haze that seemed to amplify the heat...
薄雾散了，取而代之的是一种似乎更添酷热的烟霭。

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

confidence

n. 信心，信任，秘密；adj. 骗得信任的，欺诈的；

例句
I have confidence in the ability of the players...
我对于球员们的能力充满信心。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

steely

adj. 钢铁般的，钢制的，顽强的，无情的，极严格的；

例句
Artist Richard Stone has captured in her eyes and the set of her face her steely determination.
画家理查德·斯通在她的眼神和面部表情中捕捉到了她的坚毅和决绝。

determination

n. 决心，决定，确定，[物]测定，计算；

例句
...their determination not to be bowed in the face of the allied attacks.
他们绝不在联合攻击面前丧失斗志的坚定决心