treaty UK ['tri:.ti] US [-tˌi] noun countable IMPROVER ■a written agreement between two or more countries formally approved and signed by their leaders 条约;协定•a peace treaty和平条约 •the treaty on European union欧盟的条约 •[+ to infinitive] We've signed/concluded a treaty with neighbouring states to limit emissions of harmful gases.我们和几个邻国签署/缔结了限制有害气体排放的条约。 |