off-hand
英 ['ɔ:fh'ænd] 美 [ˈɔfˈhænd, ˈɑf-]
off-hand基本解释
adj.不客气的;未经准备的
off-hand英英释义
adv
1. without preparation
e.g. I don't know the figures off-hand
Synonym: ex tempore