如果不管用，就把它退还给制造厂家。
他在花园面向马路的一块小牌子上写了“禁止停车”，但它不管用。
He wrote "NO PARKING" on a small board in the garden facing the road, but it didn't work.
让政府投资这些痴迷研究的人难道不管用吗？
Wouldn't it work to have the government invest in the nerds?
不管用什么方法，一个湖泊的水总是在不断地增加和减少：它的水不会只是待在那里，或者待很久。
By whatever means, a lake is constantly gaining water and losing water: its water does not just sit there, or, anyway, not for long.
她有很多借口，但是最终都不管用。
布什先生的一些财政措滩并不管用。
爱情第一课：“尝试”不管用。
声称可以去除脂肪和皱纹的面霜通常都不管用。
Creams that claim to get rid of cellulite or wrinkles usually don't.
如果短信不管用将会采取强硬手段来解决问题。
要想改善你和另一半的交流，光是交谈不管用。
To communicate better and more effectively in your relationship, you don't only have to talk.
不，听“比尔和蒂米的早晨幽默秀”是不管用的。
多种抗抑郁药都不管用，她不得不接受住院治疗。
Multiple antidepressants didn't help, and she had to be hospitalized.
所以，不管用什么办法，缩短这种差距就会有所帮助。
我得了皮肤病，但医疗费太高，而且用的药并不管用。
I was suffering from a skin disease. The medical costs were too expensive and the drug didn't work well.
好多宾馆和小旅社信用卡不管用，需要提前给他们打款。
Many hotels and guesthouses require a deposit to be sent in advance, rather than paying by credit card.
“海投法”是不管用的，尤其是在精英荟萃的就业市场。
The problem with the shotgun method is that it does not work, especially in a job market where employers have the pick of the litter.
这个比例使传统的大家庭或社区育儿方式越来越不管用了。
The numbers are such that traditional ways of caring for children in extended families and communities are breaking down.
这些药吃一个星期；如果不管用的话，我有一台彩色电视机！
Take these pills for a week; if that doesn't work I'll have a color TV!
这在XSL中不管用，因为xsl样式表必须有良好的格式。
This does not work in XSL, because XSL style sheets must be well formed.
或许这技巧有时并不管用，你或许会因为它而输掉一场摄影比赛。
Perhaps this technique won't always work. It will almost certainly get you thrown out of any photo club contest.
财产政策的回归不是因为它的缺点消失了，而是别的都不管用了。
Fiscal policy has made a comeback, not because its flaws have disappeared, but because the alternatives don't seem to be working.
目击者的证词在法庭上倒是很好使，但是到了科学家那里却不管用了。
EYEWITNESS evidence may be all very well in a court of law, but it cuts no ice with scientists.
(笑声)等一下，这大概不管用，而且我……(笑声)让我再来一遍。
Wait a minute, this may not be working as well as I — (laughter.) Let me try that again.
我花了最近几年时间里正确理解，什么对女人奏效，什么又绝对不管用。
Well, I've spent the last several years of my life figuring out exactly what does and doesn't work with women.
这招就不管用了…化学和物理怎么解释得了初恋这么重大的生物现象呢？
No, this trick won't work... How on earth are you ever going to explain in terms of chemistry and physics so important a biological phenomenon as first love?
如果你的PC机感染了病毒，几乎可以肯定现有的杀毒软件已经不管用了。
If your PC is infected then it is almost certain that your existing security product has already let you down.
如果你的PC机感染了病毒，几乎可以肯定现有的杀毒软件已经不管用了。
If your PC is infected then it is almost certain that your existing security product has already let you down.
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