An old saying has it that half all advertising budgets are wasted—the trouble is, no one knows which half.
有句老话说，一半的广告预算都浪费了——问题是，没人知道是哪一半。
The number of IFC projects rose 18 percent to 440, of which half were in IDA countries.
国际金融公司的项目数增加了18%，增至440个，其中半数在IDA借款国。
Reps will say dumb things like, "half your advertising works and half doesn't — and you'll never know which half." Rubbish.
销售代表只会讲那些毫无作用的话，譬如，“你一半的广告收到了成效，还有一半没什么效果——但你无法知道到底是哪一半。”真是废话。
I know half the money I spend on advertising is wasted. Now, if I only knew which half.
我很清楚我花在广告上的钱有一半都被浪费了，可惜我不知道到底哪一半被浪费了。
Half the money I spend on advertising is wasted; the trouble is I don't know which half.
一半的广告费用都被浪费了，但问题是我不知道是哪一半。
Once managers would say jokingly, " I know that half of what I spend on advertising is wasted, but I don't know which half."
曾经一位经理开玩笑着说，“我知道我在广告上的投入一半是浪费掉的，但是我却并不知道那浪费掉的究竟是哪一半。”
As with radioactivity, stories have a half-life-in other words a period by which half of newly promoted stories are relegated to a nether page.
与放射性一样，故事有一个半衰期-换言之，就是新推荐的故事从首页到被下放的周期。
That is the cognitive training studies in which half the people are put into one cognitive training group and maybe another half into the control group.
在认知训练研究中，人们被分成两组，一半人组成认知能力训练组，另一半人组成对照组。
This is also the point at which half of the testing frameworks fail, because they don't actually allow you to add UIComponent to the display list for testing.
这里也是一半测试框架做不到的地方，因为它们实际上不允许把UIComponent增加到显示列表进行测试。
The authors carried out an experiment on 32 men and women, in which half were given a powder containing 0.8 grams of TRP, and the others were given a harmless placebo powder.
作者对32名男女进行了实验，其中一半人服用一种含有0.8克的色氨酸粉末，另一半人则食用了无害的安慰剂粉末。
Which half of the apple do you want?
这个苹果你要哪一半？
Which half of the apple do you want?
这个苹果你要哪一半？
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