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federation n.
a group of organizations, countries, regions, etc. that have joined together to form a larger organization or government
同盟，聯盟；聯邦

federation n.
the act of forming a federation
結成聯邦；結盟

He's against European federation.
他反對歐洲聯盟。

federate v.
to join together to form a federation
（使）組成同盟；（使）結成聯邦

Local fishing cooperatives have federated to form a national organization.
当地渔业合z**u**o社已联h*e起来形成一个全国性z***u织。

Either the two States federate and form a united State, or one of them conquers and annexes the other.
要么两个州联h**e起来形成一个统y***i的国家，要么其中一个州征服并吞并另一个州。

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federal a.
聯邦政府的

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federally
作为联邦系统一部分（=由zy政府控制的一组地区组成的系统）：

These matters are now dealt with federally.
这些问题现在由联邦处理。

Federally funded research in this area has produced some extremely promising results.
联邦z**f资助的该领域的研究已经产生了一些非常有希望的成果。

A drug that has been approved federally may still be prescribed or administered incorrectly at regional level.
已获联邦政府批准的药物仍可能在地区层面被错误开具或使用。

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federated adj.
consisting of a group of organizations, countries, regions, etc. that have joined together to form a larger organization or government:
由一组组织、国家、地区等组成，它们联合起来形成一个更大的组z8**hi或政f**u：

Brazil is a federated republic, with a civil law system.
巴西是一个联邦共和国，实行民f***a制度。

Federated systems guard against an overconcentration of power at the national level.
联邦制d***u防止国j层面权l***i过度集中。