I.on [美 ɑn, ɔn, 英 ɒn]介词on often appears as the second element of certain verb structures in English (count on, lay on, sign on, etc). For translations, see the relevant verb entry (count, lay, sign, etc).
They venture on and run into an overturned carriage with several bodies having been consumed by the vorgs, carnivorous cyborgs, that harvest brain tissue to feed on.