Today it has become a pillar of the advertising industry.
但现在者变成了广告业中的起支柱作用的一个部分。
2
Today it has become a pillar of the advertising industry.
今天它已成为广告业的支柱。
3
Not long ago social-media marketing was something that brand managers might ask their summer interns to deal with. Today it has become a pillar of the advertising industry.