Examples
tā他wèi为yì一jiā家guǎng gào广告gōng sī公司gōng zuò工作。
他为一家广告公司工作。
He works for an advertising agency.
那家公司在广告上花了很多钱。
The company spends a lot of money on advertising.
成千上万的人对这个广告很失望。
Thousands of people were very disappointed with this advertisement.