So advertisers expect rigorous information about who sees the spots - information that face tracking can now provide, Ketcham said.

所以广告客户希望的到严谨的统计信息，到底谁看了他们的广告，而这些信息是面部追踪系统能够提供的，Ketcham说。

youdao

Mr. Ketcham: It just happens that we need a few salesmen now to replace those who are on vacation. How soon would you be able to start work?

凯查姆先生：现在碰巧我们需要几位售货员代替那些现在度假的。你什么时候能开始来工作呢？

youdao

Mr. Ketcham: It just happens that we need a few salesmen now to replace those who are on vacation. How soon would you be able to start work?

凯查姆先生：现在碰巧我们需要几位售货员代替那些现在度假的。你什么时候能开始来工作呢？

youdao