第一，情景对话

A: Tom is very nervous. He is going to run for the chairman.

汤姆很紧张，他要竞选主席。

B: Let's have us at his back.

我们去支持他吧。

A: All right. We'll talk to him tonight.

好啊，今晚我们找他谈谈。

第二，词海拾贝

have someone at one’s back：有某的支持，得到某人的支持

e.g. If you make this decision you will certainly have the President at your back.

你如果采取这项决定的话，一定会得到总统的支持。

e.g. Mike has the manager at his back in his argument with the customer because he is right.

Mike与顾客的争吵中，老板会支持他，因为他是对的。

e.g. The candidate has a large number of people at his back.

这位候选人有很多支持者。

e.g. Simon knows that he has the head of the Department at his back.

西蒙知道他有系主任的支持。

第三，语汇积累

1. run for：竞选

e.g. I'm planning to run for the school board.

我打算竞选联合校董会董事。

e.g. Five candidates want to run for the presidency this year.

今年有五名候选人想竞选总统。

2. at one’s back：得到支持

e.g. There must be someone at his back.

他后面一定有人在撑腰。

e.g. He was a benefactor with collective society at his back.

他是一个捐助者，有整个社会作他的后盾。

e.g. The boy has done many evil deeds, but he does not fear anything with his father at his back.

这个男孩干了许多坏事， 但他有恃无恐，因为其父当他的后台。