形容一个人不知所措的英语翻译成全

一次坐公共汽车，不经意间听到一位母亲跟另一位母亲抱怨：我们家的孩子就是不爱学习，打也不听，骂也不听，讲道理也没用，我是没辙了。这个“没辙了”用英语怎么说呢？即“at wit's end”。
“At wit's end”出自圣经。它的意思就是，所有能想到的办法都试过了，再也想不出其他办法了。从字面上看也很容易理解，已经到达了智慧的尽头，不知所措，没辙了。

看下面例句：
Can you help me to solve this problem? I'm at wit's end.（你能帮我解决这个问题吗？我已经没辙了。）
女主播Sloan准备离开ACN去投行工作，离开前突然和制片人Don表白。看见Don吃惊的样子，Sloan自嘲到：Caught you off-guard, didn’t it?译文：让你不知所措了，是么？off-guard
(catch/take somebody off-guard)to surprise someone by happening when
they are not expecting something or prepared for it.The sudden snow storm caught us all off-guard.本回答被网友采纳

新汉英大辞典
不知所措 [bù zhī suǒ cuò]

1.
be at a loss what to do; be at [come to] one's wits' end; be at a nonplus; be at a stand; lose one's bearings; not to know what to do; not to know whether one stands on one's head or heels; not to know what to make of; push [press; hit] the panic button; scarcely know where to turn

And She（He）或人名 don't know what can She do.

不知所措的翻译：be at a loss what to do;