adj.不友好的,不礼貌的,简慢的
adv.即席地,未经核实地
"Were they at home or away, do you know offhand?"
“他们在家还是出去了,你能现在告诉我吗?”
He was very offhand with me.
他完全是在敷衍我。
I can't tell offhand how much it will cost.
我不能立刻告诉你它值多少钱.