A recent one-page ad in Parade cost a deeply discounted $200,000 and brought in 2,000 paying customers, a killer response.

最近在《炫耀》杂志刊登的一页广告打完折之后只花费了20万美元，却带来2000个付费客户，一招必杀技。

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The Republicans released their killer AD, which showed John Kerry saying that he had voted for funding the Iraq war before he voted against it, on March 18th, 2004.

2004年3月18日，共和党人曾发布了他们极具杀伤力的竞选广告，在广告中，约翰·克里曾表示：在投票反对伊拉克战争之前，他曾投票支持为伊战提供资金。

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And what they are building, he vows, is a killer ad machine, more powerful than print or television and able to charge far higher prices.

FORBES: The Killer Ad Machine

It went on to make billions by using features like AdWords and turning killer apps like Google Maps into subtle ad platforms.

FORBES: Clear Glass: Google's New 'Window To The Internet' Starts With No Ads And Free Services