英语介词习语归纳（on类）

on account of由于                                     on any account 无论如何

on no account 决不                                   on this account 由于这个原因

on the advance (物价)在上涨                     on (an) average平均，按平均算

on (the) average 平均, 按平均算                on behalf of代表(某人)

on board在船上                                        on business出差，办事

on condition that 如果                               on no condition 绝不要

on this condition 在此条件下                     on credit赊购

on demand在要求支付时                           on display展出

on duty值班                                              on earth 在世上，究竟

on exhibition 展出                                      on fire着火了

on foot步行(去)                                         on good terms 和睦

on guard有警惕                                          on hand 在手头，即将发生

on holiday 休假                                           on leave 休假

on no account绝不                                     on one's own独立地

on purpose故意地                                       on sale在出售

on strike在罢工                                          on the contrary相反

on the(tele)phone 在打电话                         on the point of正要

on the way 在路上                                     on time准时

on top of在……上面                                   on the whole 大体上, 基本上