He is doing a commercial course at the local college.

他在当地的学院里教授一门商业课程。

youdao

E. g. He is doing a commercial course at the local college.

他在当地的学院里教授一门商业课程。

youdao

Attention is drawn to a special voluntary course in Commercial French.

注意力被吸引到一门特别的商务法语选修课上。

《柯林斯英汉双解大词典》

"For example,the woman's sector have put through a recommendation to cabinet around the idea of putting a moratorium on arrests of commercial sex workers during the course of the World Cup."

VOA: standard.2010.05.29

Of course, Red Hat is a commercial vendor.

FORBES: Red Hat's Formula for an Open Cloud

Of course, commercial banks are vulnerable to a run on customer deposits.

FORBES: Magazine Article

No authentic German experience would be complete without beer, of course, but commercial breweries have been a very recent addition to the town.

BBC: A German enclave in central Texas