Those add up to around 25 minutes of AD time.
这些加起来大概有25分钟的广告时间。
It also made the remaining AD time scarcer, and thus more valuable.
这也使得剩余的广告时段变得越发稀缺，也就越发昂贵。
The time you spend on an ad-hoc project tends to be fairly short.
你花在一个临时项目上的时间往往是相当短的。
The time you spend on an ad hoc project tends to be fairly short.
你花在一个特别项目上的时间往往是相当短的。
In the US, there is a big mismatch between time spent online and AD dollars.
在美国，在线时间和广告费用之间存在较大的不一致。
You can set an AD to run during a specific time period (although not a time of day).
你可以制定一个广告计划，并让它在特定时间段(可以不是一天中的某个时间)播放。
At the time of this writing, my site is very ad-heavy.
在我写这篇文章的时候，我的网站上的广告真的非常多。
The type of contract: long term, AD hoc, restricted time, unlimited time, etc.
合同的类型：长期的、临时的、限期的、无限期的，等等。
I tend to also run the same images at a time with different AD copy.
我常常在同一时间运行同一个图片，不同的广告语。
The response to the AD in the newspaper was 30% lower than at this time last year.
报纸上的广告反应与赴年这个时期相比降低了30%。
The AD is showing termly, please save your time to see them!
广告持续播出中，请及时锁定频道收看！
What if an ad coes in at exactly the same time as a chat ?
那如果广告作为一个新的聊天讯息出场的话呢？
I felt that none of use of the old AD for a long time.
我早就觉得旧的广告已经不管用了。
For a time, the peccadillo reportedly cut in half her asking price for AD work.
犯下小小疏失，有一阵子，据传她的广告方面的身价削减了一半。
For a time, the peccadillo reportedly cut in half her asking price for AD work.
犯下小小疏失，有一阵子，据传她的广告方面的身价削减了一半。
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