1. They explored every avenue but could not find a solution.
    他们寻求各种途径，但仍找不到解决办法。

2. avenue

2. That is Madison Avenue.
    那就是麦迪逊大道。

3. We explored every avenue but could not find a good solution.
    我们什么方法都试过了，但是找不出好的解决之道。

1. 街道：因此,这种缺乏起交换通道(passage)或街道(avenue)的作用,这种交换同时指向两个方向:由外向内以及由内向外. 这就是开放性,流动性(fluidity),无根基性(ungroundedness),总是与作为再现系统的书写相关联的不确定性(indeterminacy).

1. （有时用于街名）大街，街道（书面缩略形式为Ave.）
    Avenue is sometimes used in the names of streets. The written abbreviation Ave. is also used.

    e.g. ...the most expensive stores on Park Avenue.
           帕克大街上最贵的商店

2. 大道；（尤指）林阴大道
    An avenue is a wide, straight road, especially one with trees on either side.

3. 方法;途径
    An avenue is a way of getting something done.

avenue的反义词

    e.g. Talbot was presented with 80 potential avenues of investigation...
           给塔尔博特提出了80种进行调查的可能途径。
    e.g. There is another avenue to pursue — it involves further negotiations.
           还有一个办法可用，但需要进一步的磋商。

1. a line of approach

    e.g. they explored every avenue they could think of
           it promises to open new avenues to understanding

2. a wide street or thoroughfare

    Synonym: boulevard