美国俚语:浪费时间和人力做某事却没效果

 　　piss in the wind  浪费时间和人力做某事却没效果

　　英文解释:

　　Doing something that is a complete waste of effort and time for which you can expect no results and may even backfire on you.

　　中文解释：

　　是浪费时间和人力做某事却没效果，甚至适得其反。

　　例句：

　　Telling the president that invading¹ other countries is unpopular with many voters is like pissing in the wind.

　　告诉总统侵略其他国家会遭到许多投票者的反对，那样的行为不会有好结果往往适得其反。

1 invading   

v.侵入，侵略( invade的现在分词 )；涌入；侵袭；侵犯

参考例句：

• The invading troops were guilty of rape and pillage. 侵略军犯了抢劫和强奸的罪。 来自《简明英汉词典》
• The invading army desecrated this holy place when they camped here. 侵略军在这块圣地上扎营就是对这块圣地的亵渎。 来自《简明英汉词典》