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).
There were many who opposed this plan on the grounds that innocent citizens could see their power cut off without warning in the event of an administrative or legal error.