So, you know - but that's a rearguard action.

所以，你知道——但是后卫行动。

Next came the musicians and a rearguard of capering fakirs, whose cries sometimes drowned the noise of the instruments;these closed the procession.

接着是乐队和一支狂热信徒组成。他们叫喊声，有时甚至掩盖耳欲聋乐器声，游行队伍至此才算结束。

Publishing is already fighting a rearguard action against the 1997 cancellation of the net book agreement (NBA)and the more recent dominance of Amazon.

出版业已经在与1997年取消网上书籍协议（NBA）以及最近亚马逊主导地位进行一场后卫行动斗争。