核心句型：
He is on the up and up.

他这个人诚实可靠。

on the up and up 直译过来就是：“不断向上”，这个短语的正确意思是：“诚实的，正派的，老实可靠的”。因此，当美国人说"He is on the up and up."时，他/她要表达的意思就是:"He is honest and reliable."、"He is a decent, upstanding man."、"He is on the level."。

情景对白：
Benjamin: What do you think of our new partner?

本杰明：你觉得我们的新搭档怎么样?

Terry: He is on the up and up.

泰瑞：他这个人诚实可靠。

搭配句积累：
①And we have a nice cooperation.

我们合作得很愉快。

②You can place much reliance on his promise.

你大可以相信他的承诺。

③He means what he says.

他总是言出必行。

④He is really a good partner.

他是个不错的搭档。

单词：
1. decent adj. 正派的

He's a thoroughly decent man.

他是个极为正直的人。

The majority of people around here are decent people.

这里的大多数人都很正派。

The jury will see what a decent guy he is.

陪审团将会认识到他是一个多么正派的人。

2. on the level 诚实的，可靠的

Is that guy on the level? I find it hard to believe him.

那家伙诚实吗?我发现要相信他很困难。

I have told the whole story on the level.

我已经诚实地把整个事情经过讲出来了。

I hope you'll be on the level with me.

我希望你对我坦率布公。