Congress is a bicameral legislature, meaning that it has two chambers (or parts).

两院制立法机构，意思它有两个议院（或部分）。

So far, no deal has been reached by a bipartisan bicameral conference committee

目前为止，还没有达成任何协议，虽然已经召开了两党两院联席协调。

How does a bicameral Congress allow people in large and small states to have better representation?

两院制何让大小州的人的代表性更强呢？

(or document that creates the government for a country) and make the Congress become bicameral (or with two parts).

（或者说一个家创建政府的法律文件），让变成两院制。