It marked the first use of WHO's constitutional authority to issue an international health treaty.

它标志着世卫组织第一次运用其组织法权力，颁布一项国际卫生条约。

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It marked the first use of WHO's constitutional authority to issue an international health treaty.

它标志着世卫组织第一次运用其组织法权力，颁布一项国际卫生条约。

youdao