Advertising firms already film how people react to ads, usually in an artificial setting.

广告公司已经录制了人们如何对广告作出反应，这通常是在人工刻意创造的环境下进行。

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Cash - strapped advertisers cut the fees they pay their advertising firms, and tens of thousands of AD jobs were lost.

资金紧张的广告商减少了对广告公司的付费，广告业削减了数万个工作岗位。

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Advertising firms will, no doubt, be just as keen to measure heartbeats, especially for ads designed to get pulses racing.

广告公司无疑也迫切希望能够测量浏览者的心跳，特别是针对那些本来就希望能够让人心跳加速的广告。

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Advertising firms already film how people react to ads, usually in an artificial setting.

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But for all the questions, advertising firms are still eager to start testing the waters.

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Suddenly Lamar Advertising, one of the largest outdoor advertising firms, has announced plans to pursue REIT status.

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