I didn't exactly knock his socks off, did I?他好像对我不感冒，是吧

knock one's socks off:对某人大吃一惊

Tracy"s sudden marriage knock my sock off .

特雷西的闪电结婚使我感到震惊.

I'm gonna buff up and knock her socks off!

我要去练一身肌肉,让她刮目相看!

Well, if you change your mind, here's my card.改主意的话请联系我，这是我的名片

change one's mind:改变主意

She is constantly changing her mind.

她经常改变主意。

Two days later he changed his mind.

两天后他改变主意了。

There are dozens of potentials here that I can be talking to.这儿能商谈的潜力股多得是

dozens of:几十

She buy a dozen of egg in the market.

她在市场上买了一打鸡蛋。

We have dozens of things to do now.

我们现在有很多事要做。

dozen用法：a dozen of修饰名词时of可省略,但dozens of中的of不能省去。

There were half a dozen foxes skulking in the undergrowth.

在林下灌丛中潜伏著五六只狐狸。