II.off [美 ɔf, ɑf, 英 ɒf]副off often appears as the second element of certain verb structures in English (break off, pay off, take off, etc). For translations, see the relevant verb entry (break, pay, take, etc).
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).
The evidently unprepared speech is occasionally meandering and generously peppered with false starts that trail off to nowhere (you know, like unprepared speeches sometimes are).
These accounts then usually trail off into increasingly fractalized, and largely irrelevant, partial differential equations which serve only to obscure the lack of fundamental insight.