Sure they experienced numerous obstacles and setbacks and failures .

当然他们遇到大量的障碍和挫折和失败。

Mr kahn also worries about market failures .

科恩教授还对市场失灵忧心忡忡。

But its diplomacy also had its failures .

但是她的外交还是有失败的。

Defeat is not the worst of failures .

被打败并不是最失败的。

But missteps and failures are more usual .

但是失误和失败则更为常见。