毫无结果用英语怎么说？

毫无结果

例句

• It was in vain that we tried to find his mother. 我们百般设法找他的母亲, 但毫无结果。
• two years of feckless negotiations 拖了两年毫无结果的谈判
• I think the project is done for—the money’s almost gone and we’ve got no results after three years’ hard work. 我认为这个项目肯定不行，钱几乎花光了，苦干了三年仍毫无结果。
• After repeated but fruitless demands for payment,he brought a suit against the debtor. 在再三要求支付而毫无结果的情况下,他向债务人提出诉讼。
• This is a barren argument. 这是一场毫无结果的争论。
• All our tough talk about dealing with the union came to naught. 我们在对付工会问题上的艰苦谈判毫无结果.
• The next two days were spent in fruitless parleys. 其后两日是消磨于毫无结果的谈判中.
• The three - year inquest into the case has proved nothing. 对该案历时三年的调查毫无结果.
• That stormy little meeting ended inconclusively. 这一场疾风暴雨的小约会竟然弄得毫无结果.
• Their search for the plane is fruitless. 他们对飞机的搜寻是毫无结果的.