Therefore, they may not reach as many consumers as poster ads.

因此，它们可能无法像海报广告那样吸引到那么多的消费者。

However, the ads can only be seen by those who buy the paper or magazine. Therefore, they may not reach as many consumers as poster ads.

然而，广告只能被购买报纸或杂志的人看到。因此，它们可能无法像海报广告那样吸引到那么多的消费者。