adj.漫不经心的，不在乎的
adv.未经核实地，不假思索地，即席地

Offhand, I can't think of any other solution to the problem.
我一时想不出这个问题的其他解决办法。
She mentioned casually that she was planning a trip to Europe offhand.
她随口提到她正计划去欧洲旅行。
Offhand, I don't remember seeing him at the party last night.
我一时记不清昨晚聚会上是否见过他。
The answer seemed to come to me offhand, as if it had always been there.
答案仿佛自然而然地出现在我脑海，就像它一直存在一样。
He offered an offhand compliment about her new dress, but it was genuine.
他对她的新裙子随意地表示了赞美，但却是真心的。
Offhand, I'd say the restaurant is pretty popular among locals.
就我而言，这家餐厅在当地人中相当受欢迎。
Offhand, I couldn't tell you how many languages he speaks fluently.
我一时说不上来他能流利地说多少种语言。
The idea struck me offhand as a brilliant one, but I needed time to think it through.
这个想法突然闪现在我脑海，看似绝妙，但我需要时间仔细考虑。
Her response was offhand and dismissive, indicating she wasn't particularly interested.
她的回答漫不经心且不以为然，表明她对此并不太在意。
I'll have to check my schedule offhand to see if I'm free next week.
我得先大致查一下日程，看看下周是否有空。