Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
along [əˈlɔŋ] prep (motion) по +dat, вдоль +gen (position) вдоль +gen
adv
is he coming along (with us)? он идёт с на́ми?
he was limping along он шёл хрома́я
along with вме́сте с +instr
all along с са́мого нача́ла
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.