商业信函的英文：
commercial correspondence

The proper form for a Business letter.
商业信函的正确格式

Commercial invoice is a document.
商业发票是一种单证。

We are not a commercial organization.
我们是一个非营利团体。

The play was a commercial success.
这出戏从营利角度看， 很成功。

There is a commercial radio station in the city.
在这个城市里有一个商业之声。

This is the government procurement not commercial.
这是政府采购，不是商业采购。

He is a good correspondent.
他是个勤于写信的人。

The interior of the house corresponded with the exterior.
房间内部的陈设跟室外很协调。

Our pace is corresponding to the opportunities.
我们的步伐与机遇是一致的。

The European correspondent will headquarter in Paris.
欧洲记者将她的总部设在巴黎。

To correspond in gender, number, case, or person.
呼应，一致在性、数、格或人称方面彼此呼应，一致