Whether it is a pre-roll or post-roll or even an embedded video AD that user clicks on, the clean separation between content and the AD is gone.

无论是视频前播放的pre - roll视频广告、视频播放后的post - roll视频广告，还是视频插播广告都不能与视频本身的内容相分离。

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Is in the habit of nodding off at his post during the night shift, which follows evening roll call and runs until morning roll call.

一个警卫在值夜班的时候会习惯性的打瞌睡，从晚间点名之后到早晨点名。

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Objective: To evaluate and compare the curative effects between gauze roll packing and dual water bag packing of the anterior post nares in arresting epistaxis.

目的：比较前后鼻孔纱球填塞法与双管水囊前后鼻孔填塞法治疗严重鼻出血的疗效。

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The first round of post-debate polls are beginning to roll in.

FORBES: The Bounce Has Begun

As India dug its heels in, American officials dropped talk of freeze and roll-back, and most of the post-test sanctions have gone too.

ECONOMIST: Hail to the chief tourist

Their research won support from, and gave support to, conservative politicians keen to roll back the costly welfare policies of the post-1945 years.

ECONOMIST: WHAT WE LEARN FROM TWINS: The mirror of your soul | The