start off    ph. 開始; 出發

He started off without telling us where he was going.

What made him start off on this weekend cycling craze?

The speaker start off by describing her background.

What started off seven years ago as just a few businesses getting together for a fun round of golf has grown a lot over the years.

.

business    n.

商店；商行；公司；企業[C] 

She started a new business in Phoenix not long ago. 

職責，本分；分內事；權利[U]

This is none of your business.

.