confederal
[kən'fedərəl]
adj.
同盟的;
联盟的;
邦联的;
结成同盟（或邦联） 的;
例句:
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Can federal or confederal solutions be negotiated to limit ethnic strife? ( Lincoln P. Bloomfield )
通过谈判就可以解决联邦或邦联间的问题以限制种族争斗 吗 ? ( 林肯P. 布卢姆菲尔德 )
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So she believed that the advent of East Europeans would make the European Union more confederal rather than federal.
来自BBC