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。
Unfortunately, no one knows in advance which half - Jan Tinman.
可惜，没有人能事先知道是哪一半。
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。
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。
Work only a half a day; it makes no difference which half -it can be either the first 12 hours or the last 12 hours.
每天只工作半天，前12小时与后12小时并无太大差别。
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。
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。
One client had to be in the top five scores on a Web site at which half a million people were playing," Hyken said. "They're using it as a way to escape reality."
我有一位病人就非得让自己在某网站有50万玩家的游戏中排名前五，”海依肯说，“这是他们逃避现实的一种方式。”
In an intervention, executives can be asked to imagine an all-company meeting in which half the attendees spend most of the meeting on their smartphones, lost in cyber-space.
高层们应该可以想象，在一次全公司的会议中，如果其中一半的人都在摆弄自己的智能手机，那会时什么样的结果。
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。
The crowd, which had been thin for the first half of the race, had now grown considerably.
上半场比赛时观众稀稀拉拉的，现在则大大增多了。
Instead of giving the wig back, Pinocchio put it on his own head, which was half swallowed up in it.
皮诺乔并没有把假发还给他，而是把它放在自己的头上，半个脑袋都被套进去了。
Coal prices also are low, owing to over-supply and the scaling-down of demand, especially from China, which burns half of the world's coal.
因为供应过剩和需求下降，煤炭价格也很低，尤其是消耗了全球一半煤炭的中国的需求下降。
There was a machine in the kitchen which could extract the juice of two hundred oranges in half an hour if a little button was pressed two hundred times by a butler's thumb.
厨房里有一台机器，只要管家用拇指按下小按钮两百次，半小时就能榨出两百个橙子的汁。
More than half the world's population lives in cities, the most light-polluted of which prevent even the Big Dipper from being seen.
超过半数的地球人口生活在城市，那些光污染最为严重的城市甚至连北斗七星也看不到。
In the process he uncovered numerous lost works, almost half of which were written by African-American women.
在这个过程中，他发现了许多丢失的作品，其中几乎一半是由非裔美国妇女写的。
A cup of Colombo blueberry yogurt contains 36 grams (g) of sugar, only about half of which is found naturally in the yogurt and fruit.
一杯科伦坡蓝莓酸奶含有36克糖，其中只有一半是天然存在于酸奶和水果中。
In little more than a decade, Argentina has become the world's leading exporter of honey, with nearly 90,000 tons a year sold to foreign markets, almost half of which is going to the United States.
在10年多的时间里，阿根廷已经成为世界上最大的蜂蜜出口国，每年有近9万吨蜂蜜销往国外市场，其中近一半销往美国。
It lies high upon the hill, between the large oak-trees, one of which is half decayed.
它坐落在高高的山丘上，夹在几棵大橡树之间，其中一棵已经枯萎一半了。
To avoid such a scenario, Lunt says Angel's project would have to operate at half strength; all of which reinforces his view that the best option is to avoid the need for geo-engineering altogether.
为了避免这种情况，伦特说，安吉尔的项目必须以一半的实力来运作。所有情况都强化了他的观点，即最好的选择是完全避免进行地理工程。
To avoid such a scenario, Lunt says Angel's project would have to operate at half strength; all of which reinforces his view that the best option is to avoid the need for geo-engineering altogether.
为了避免这种情况，伦特说，安吉尔的项目必须以一半的实力来运作。所有情况都强化了他的观点，即最好的选择是完全避免进行地理工程。
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