As a stopping point on the famous Silk Road, Loulan is believed to have been gradually covered over by sandstorms from AD 200 to AD 400.
楼兰是著名的丝绸之路的一个中转站，据说在公元200年至公元400年期间，它逐渐被沙尘暴覆盖。
The implication of this is not only that users will avoid ads but that they’ll avoid anything that looks like an ad, even if it’s not an ad .
这意味着用户不仅会避开广告，而且他们还会避开一切看起来像广告的东西，即便它们跟本不是广告 。
Watch this video to better understand the ad auction and how to enable the most competition for your ad space.
观看此视频，以便更好地了解广告竞拍和如何使你的广告空间保持最高的竞争性。
Then customize your ads to each ad group, making sure to include the keyword in the ad (preferably in the headline).
然后，对每个广告组进行自定义，确保广告中要包括相关的关键词（最好是在标题中）。
Once you've decided on directories, headings, and ad sizes, concentrate on creating an ad that both attracts attention and stimulates customer response.
一旦确定了黄页目录、标题和广告大小，就应致力于创造一个既能引起注意又能刺激顾客反应的广告。
The advertiser pays only when a consumer clicks on an ad; the owner of the website where the ad was displayed then receives a small commission.
只有当客户点击某个广告时，广告商才需要付费，然后刊登广告的网站就会获得一小笔佣金。
The project didn't have numbers available but said online ad revenue was expected to surpass print newspaper ad revenue for the first time in 2010.
PEJ目前虽然没有数据论证，但报道称，在线广告税收预计在2010年第一次超过印刷新闻的广告收入。
Now I sell one ad a month (which I’m also eliminating), and do almost no work — the advertiser presses a Paypal button to reserve the ad, and emails me the ad image and link code.
现在我每个月只放一条广告（这条我是也准备要删的），这基本不花多少精力——广告投放者通过Paypal来预订广告位，再用Email通知我广告的图像和链接代码。
Neither Twitter nor Facebook is at a loss for ad revenue or attention. eMarketer recently predicted Twitter's 2011 ad revenue will reach $150 million, a 200-percent increase over last year.
不论是Twitter还是Facebook，对于他们的广告收入或是关注度，根本没有任何损失。 网络营销人员最近预测2011年Twitter的广告收入将达到1.5亿美元，较之去年同期增加增加了两倍。
Or they might change their ad strategy, going regional instead of national, to conserve ad dollars.
或者，他们也可以改变广告策略，更多针对某些地区而不是全国市场投放广告。 这同样可以节省用于支付广告费用的现金。
Advertisers were also more frequently using performance-based ads - where they pay only when someone clicks on the AD or buys something after seeing the AD.
广告主也更频繁地使用基于表现的广告，这样他们只有在用户看广告之后点了广告或购买物品时才要付费。
"When an AD is targeted properly, it ceases to be an AD, it becomes important information," he says.
“一条广告目标正确的话，它就不再是广告了，而成为了重要信息。”他如是解释道。
An ad-serving platform that analyzes product-specific shopper behavior and buyer intent to decide what AD to serve in real time.
该广告服务平台通过分析具体产品的购物者行为和买方意图，来决定应实时投放哪些广告。
But this particular AD jumps out at her because she immediately notices that the person in the AD is actually someone from her high school!
但是这份特别的广告很容易引起她的注意，因为她立即发现广告中的主角居然是她的中学同学！
This AD format was neither of standard size nor had typical banner AD characteristics.
这个广告的形式既不是标准尺寸，也不是典型的横幅广告字符。
Now obviously we have a very selfish interest in this, but what do you see on the Web in terms of the impact of things like AD networks and AD exchanges and the like?
很明显，目前我们在这方面的利益考虑有些自私，但是您又是如何看待广告网络、广告交换等对网络媒体的影响呢？
So we have lots of different AD products, and those AD products go everywhere the tweets go.
我们有很多不同的广告产品，推文所及之处都可以做广告。
'Google needs to make a quick response by redoubling its efforts in direct AD sales and cooperating with AD agents,' she said in the research note.
她在一份研究报告中说，谷歌需要加大对直接广告销售的投入并扩大同广告代理商的合作，以此迅速应对。
Keep areas of blank space around your artwork and throughout your AD as well, so your AD is uncluttered and easy to read.
同时还应在作品及整个广告中保持空白区域，以使你的广告显得不杂乱而且容易阅读。
Some subjects saw an AD with a vivid description of the brand's "big white fluffy kernels." Others saw a less evocative AD.
一部分受试者观看的广告有生动的“饱满，洁白，松软的爆米花”品牌描述，其他人看的广告则平淡些许。
Sitting passively on the sidelines and buying mobile technology in an ad hoc fashion is not a good idea. Ad hoc mobility is not uncommon for smaller businesses, but it should be avoided.
为事业成长考虑未来计划时 必须制定一个稳定的移动战略.仅仅静坐旁观购买无线移动装备不是一个好主意.小型公司使用无线移动网络是普遍的但应该避免.
This AD is so clever because it's hardly an AD in the traditional sense.
这个广告很是聪明，几乎改变传统意义上广告的含义。
Online AD managers may work for websites, selling AD programs and working with clients (advertisers) about where on the site, when and how to run online campaigns.
在线广告经理可以为网站公司工作，销售广告项目，同顾客也就是广告商研究在哪些网站上、什么时候以及怎样放置在线广告。
Of course, while the AD world is obsessed with clicks because they can measure those, AD receptivity is more than just clicks.
当然，由于点击率的可测量性，广告界陷于这个点击泥沼不能自拔，而广告的接受度并不只由这些点击率反映出来。
By increasing the number of advertisers competing for your AD units, the AD auction will make sure that the highest paying AD will be shown.
通过增加竞争你广告单元的广告客户的数量，广告竞拍会确保收入最好的广告将被显示。
The departures come as the social networking site has struggled to generate substantial AD revenue and is running up against a tough AD environment in the recession.
三位高管离职正值这家社交网站在经济衰退中难以实现充足的广告收入、遭遇艰难的广告环境之际。
I also hit back with a TV AD that began by asking people if they'd seen White's AD and actually showing a few seconds of it.
我还制作了一个广告进行反击，先是询问选民是否看过怀特的广告，并播放了其中的一小段。
Not only is skill required to make an AD look right, but the quality of your AD must compete favorably with others appearing in the publication.
这不仅要求技能，而且你的广告质量还应能与出版物中出现的其他广告竞争。
To organize and administrate the activities of AD publishing and AD operation.
组织管理广告发布与广告经营活动。
As Woodford and others have observed, current AD is powerfully affected by changes in future expected AD.
就像伍德福德和其他人评论的一样，当前的反萧条措施已经被将来预期的变化深深的影响了。
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