美国的法院体系是双重的，包括州法院和联邦法院。的翻译：United States court system are twofold, including State and federal courts. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

U.S. court system is twofold, including state and federal courts.

United States court system are twofold, including State and federal courts.

US's court system is dual, including state court of appeal and federation court.

The courts of the United States is a double system, including state and federal courts.

United States court system are twofold, including State and federal courts.