Thanks again for your reply.i am ready to give up on this pattern-it might be too advance for me although,i am an experinced knitter who left the needles to rest for few years...
I will copy the whole line of the pattern(two of them) and mybe,it makes more sense.
row 1 SL 2 (purlwise wyib on all odd rows),p3,p2tog tbl,k4,yo,k2,yo,ssk,p2,yo,p2tog,k2,yo,ssk,yo,k4,p2tog,p3.k2.
row 2 SL 2(purlwise wyif on all even rows),k2,k2tog,p4,yo,k1,p2,yo,p2tog,k2,yo,ssk,p2,yo,p2tog,k1,yo,p4,ssk,k2,p2.
hope to work it out...thank you much