o.n.o.

美 
英 
  • abbr.或接近买方出价
  • 网络最低价;双层窗户
o.n.o.
abbr.
— see also
o.b.o.
1.
或接近买方出价,可还价(用于小广告中,表示某物可减价出售)or near/nearest offer (used in small advertisements to show that sth may be sold at a lower price than the price that has been asked)
Guitar £200 o.n.o.
吉他 200 英镑,可还价。