Your theory is quite wrong; you are flying in the face of all the experts.

你的理论相当离谱，简直不把专家的看法放在眼里。

youdao

In the face of the 21st century, marketing theory and practice will be major changes.

面对21世纪，市场营销理论和实践都将发生重大变化。

youdao

In the face of the 21st century, marketing theory and practice will be major changes.

面对21世纪，市场营销理论和实践都将发生重大变化。

youdao