Pop-up ads: A pop-up ad can deliver a malicious payload as soon as the ad appea on the viewer's screen.

弹出式广告：一个弹出式广告可以提供恶意代码一旦观众的屏幕上的广告具有吸引力。

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Changing Times: With that self-schooling, they pioneered the use of the pop-up AD on mainstream websites.

风起云涌：经过一番自学磨练，他们率先在主流网站上推出弹出广告业务。

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Another way to explore the repository in a structured yet AD hoc fashion is to select the Visual Browse action that is available in the pop-up context menu of the connection (shown in Figure 16).

还可以以另一种结构化的方式查看存储库。在连接的弹出上下文菜单中选择Visual Browse(见图16)。

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Firefox's new features include automatic updates (users previously had to complete an installation for each update) and extra pop-up ad blocking.

FORBES: Magazine Article

Unfortunately, many attacks are handled outside this forum and ad-hoc crime fighting groups seem to pop up like a game of whack-a-mole.

FORBES: Why Cybercrime Remains Big Business - And How To Stop It