他们给那个国家发出了最后通牒的英文

they delivered an ultimatum to that country

• 他们:    they
• 给:    supply; provide
• 那个:    that
• 国家:    country; state; na ...
• 发出:    issue; send out; g ...
• 了:    finish; complete; ...
• 最后通牒:    a final dispatch; ...