我们辛辛苦苦跟踪他，却无功而返。
过去，中国的联合抵制运动往往无功而返。
In the past, boycott campaigns in China have largely come to naught.
在华盛顿无功而返，或许在巴黎能取得成果。
马刺最后时刻的反扑也告无功而返，被迫缴械投降。
The last time the Spurs have been nothing back, was forced to surrender.
皮艇租赁处的一位雇员去寻找手机，但还是无功而返。
An employee from the kayak rental searched for it, but came up empty handed.
比赛的第72分钟，重庆力帆的一次进攻再次无功而返。
The competition's 72nd minute, a Chongqing Lifan's attack idle work returns once more.
一些想晨跑的无功而返因为宾馆四周守卫着的哨兵的阻拦。
Some attempting a morning jog were turned back by guards at the perimeter of their hotel.
此后哥伦比亚大举反扑无功而返，比分最终定格在0比1。
Since then, Colombia failed counterattack on a large scale, fixed the final score of 0 to 1.
与这样的人体岩石对抗，瑞典的骑兵攻击波最终只能无功而返。
Against this human rock the waves of Swedish horsemen thundered in vain.
此次贸易谈判进行了三天，但他们最后却无功而返地回国了！
The trade negotiations went on for three days, but they had to go back to their country empty-handed.
根据前两次在斯瓦特的军事进攻推断，这次行动同样可能无功而返。
On the evidence of two previous offensives in Swat, this may achieve nothing good.
许多讨论之所以无功而返，在于缺乏对审美存在的超实体性的认识。
Many were proved fruitless, originates from the ill perception for super-substance of aesthetic being.
打破这个循环是主要的问题，解决方法也是多种多样，但是都无功而返。
Breaking the cycle is the problem here and the solutions offered are varied with nothing totally foolproof.
安迪11岁时就做报童，这成了他的第一份工作，但是后来无功而返。
Andy took his first job as a paperboy at age 11 and never looked back.
惠普在平板电脑市场无功而返，而苹果的iPad却仍然卖得异常火爆。
HP failed to create a hit tablet; Apple's iPad is still selling like crazy.
它让人累得筋疲力尽，也让外来者怀着幼稚的雄心壮志而来却无功而返。
想找到带有“免耕”标志食物的消费者看来要无功而返了，至少目前是这样。
Alas, shoppers look in vain for "no till" labels on their food-at least so far.
终于第五次的震动：车不通，没办法去找你，想尽各种办法，还是无功而返。
Finally the fifth shock: car is illogical, couldn't find you, by all means, or nothing.
记录下该时刻发生的背景细节——曾经我就尝试过重温一个笔记结果无功而返。
Record Contextual Details About the Moment - There have been times when I've attempted to review a note to no avail.
但是，乐天市场开拓日本市场时的无功而返，却不会在别的市场上同样碌碌无为。
But the inefficiencies that Rakuten exploited in the Japanese market do not exist to the same extent elsewhere.
我方已尽全力为该批工艺品寻找舱位，却无功而返。可否空运，请给予指示。
We have tried our best to find container space for the art goods but have failed to do so. Please give us instructions if airfreight is possible.
有一种鸭子——水鸭，飞行速度最快，敢跟猎人叫板最可能令其无功而返，野鸭的排名紧随其后。
The teal, a type of duck, is the likeliest to defy the hunter, with the mallard not far behind.
有一种鸭子——水鸭，飞行速度最快，敢跟猎人叫板最可能令其无功而返，野鸭的排名紧随其后。
The teal, a type of duck, is the likeliest to defy the hunter, with the mallard not far behind.
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