1. Expression：like water off a duck’s back

Explanation：Fleetingly, without having any significant, lasting, or apparent impact on someone or something. （没有影响地，毫无作用地）

这个短语是指：对某人或某事没有显著的、持久的的影响。

Example：I was worried losing his job was going to trigger his depression but it seemed to roll off him like water off a duck's back.

我担心失业会让他忧郁，但看起来他没事。

Our criticisms of his talk rolled off him like water off a duck's back.

我们对他的谈话提出批评，而他根本不予理会。

The doctors tell us it`s dangerous to smoke but such good advice rolls off of some people like water off of a duck's back.

医生都告诉我们抽烟对身体是有害的。可是，这种劝告对于有些人来说就像耳边风一样，毫无作用。

情景对话：

A：Have you heard that Tom was put into prison?

你知道Tom进监狱的事情了吗？

B： Of course, I do. I once warned him not to receive kickbacks but my words just passed off him like water of a duck’s back.

我当然知道了。我曾经警告过他不要收取回扣，可是他就是不听，我的话就像耳边风一样对他没有用。

2. Expression：water off a duck’s back

Explanation: Criticisms of or warnings to a particular person that have no effect on that person. （毫无作用，没有影响）

Example：I've told him that he's heading for trouble but he doesn't listen. It's just water off a duck's back.

我已经告诉他他有要闯祸了，但他就是不听。我的话对于他来说只是耳边风。

I keep telling my friend it's foolish to gamble all of his money but it's water off of a duck's back.

我一直告诉我的朋友，不要那么傻，把所有的工资都用在赌博上。可是，我的话对他全然不起作用。

I envy my sister because any criticism or judgment is water off a duck's back to her.

我羡慕我妹妹，因为她根本不理会任对她的何批评和评价。

情景对话：

A: I can’t believe what she said about you.

我简直不敢相信她这么说你。

B: I really don’t care – it’s just water off a duck’s back to me.

我真的不在乎，那些话对于我来说就如同而耳旁风一样。