无济于事英语

无济于事英语翻译是be of no avail.

1. futile：徒劳的，无用的

2. useless：无用的，无益的

3. ineffective：无效的，不起作用的

4. in vain：白费力气，徒劳无功

5. fruitless：毫无成果的，徒劳无功的

6. unavailing：无益的，无济于事的

7. pointless：毫无意义的，无用的

8. unproductive：不生产的，不起作用的

9. unsuccessful：失败的，不成功的

10. wasted effort：白费力气的努力，徒劳无功的尝试

双语例句：

1. Despite our best efforts, the negotiations proved to be futile and we were unable to reach an agreement. - 尽管我们尽了最大的努力，但谈判最终被证明是无济于事的，我们无法达成协议。

2. The company invested a large amount of money into a project that ultimately turned out to be useless. - 公司投入了大量资金到一项最终证明是无用的项目中。

3. We tried our best to save the failing business, but all of our efforts proved to be ineffective. - 我们尽了最大的努力去拯救那家濒临破产的企业，但所有的努力最终都被证明是无效的。

4. His attempts to impress his boss with his work were in vain, as his boss showed no interest in his achievements. - 他试图通过工作来给他的老板留下好印象，但徒劳无功，因为老板对他的成就没有任何兴趣。

5. The rescue team searched for hours, but their efforts to find the missing hiker were fruitless. - 救援队搜索了数小时，但他们寻找失踪的远足者的努力毫无成果。