zhè / xiàng / gōng / yì / huó / dòng / tōng / guò / méi / tǐ / xuān / chuán / hěn / kuài / jiù / hù / gào / rén / xiǎo / le

这项公益活动通过媒体宣传，很快就户告人晓了。

This public-service campaign was promoted through the media and soon became known to every household.