offhand

• adj. 随便的；即时的；无准备的；即席的
• adv. 随便地；即席地；即时地

off,离开，hand,手。比喻用法。

1. "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？”

来自柯林斯例句

2. He was very offhand with me.

他完全是在敷衍我。

来自《权威词典》

3. I can't tell offhand how much it will cost.

我不能立刻告诉你它值多少钱.

来自《现代英汉综合大词典》

4. I can't think of anything offhand.

我即时想不出什么来.

来自《简明英汉词典》

5. I can't answer your request offhand.

我不能随便答复你的要求.

来自《简明英汉词典》