一项国际公约在任何情况下都禁止象牙的跨境贸易。
An international convention proscribes the cross-border trade of elephant ivory under any circumstances.
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解释
明令禁止(国际条约或法律层面)
An international convention proscribes the cross-border trade of elephant ivory under any circumstances.
明令禁止(国际条约或法律层面)