Neck shaping

Dear Ladies, please help me interpret this:

[COLOR=“Red”][B]Next row[/B] (RS) Work in pat over 15 sts, join 2nd ball of yarn and bind off center 17 sts, work to end.[/COLOR]

Does this mean that I knit 15 sts, bind off 17sts, then knit 15 sts again?

Yes, do 15 sts in the pattern, drop the yarn, take another yarn end and BO 17, then continue on to the last 15 sts. When you do the other side, drop the yarn when you come to the bound off gap, take the first yarn and finish the row with it. You have 2 shoulders and will knit each one with its own strand of yarn.

Ok! Thank you soooo much!!!