work in 和 work for 和 work at 和有什么不一样？ | HiNative work inWhat line of work are you in? I work in the wine industry Where do you work? I work at a winery I work in the sales department Who do you work for? I work for the man who owns the winery What do you work for? To make money, of course! ---- Hope these examples helped!|"work in" is most commonly used for geographical locations where you work, or to specify a department you work in